| Save | Year | Entries | |
| Pontederiaceae : Schlechtendal, Franz Leonh | 1861 | 1 | |
| Pontederiaceae -- Madagascar : Perrier de La Bâthie, H. | 1935 | 1 | |
| Botany -- Italy -- Pontine Marshes : Béguinot, Augusto, | 1897 | 1 | |
| Pooh Bear (Fictitious character) -- See Winnie-the-Pooh (Fictitious character) | 1 | ||
Your entry Poole, Sophia Lane, 1804-1891 would be here
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| Poor -- Appalachian Region, Southern -- History : Salstrom, Paul, | c1994 | 1 | |
| Poor -- Great Britain : Lettsom, John Coakley, | 1801 | 1 | |
| Poor -- Hospital care -- England -- London -- History -- 19th century : Waddington, Keir, | 2000 | 1 | |
| Poor -- Institutional care -- France : Société philanthropique | 1818 | 1 | |
| Poor -- Institutional care -- France -- Paris -- History -- 18th century : Frangos, John, | c1997 | 1 | |
| Poor -- Medical care -- Early works to 1800 : Prevost, Jean, | 1641 | 1 | |
| Poor -- Medical care -- Europe, Northern -- History -- 16th century -- Congresses | 1997 | 1 | |
| Poor -- Medical care -- Europe, Northern -- History -- 17th century -- Congresses | 1997 | 1 | |
| Poor -- Medical care -- France -- Early works to 1800 : Alexandre, Nicolas, | 1753 | 1 | |
| Poor -- Medical care -- Germany : Hufeland, Christoph Wilhelm, | 1818 | 1 | |
| Poor -- United States : Flower, B. O. | 1893 | 1 | |
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Pop culture -- See Popular culture --subdivision In popular culture under names of countries, cities, etc |
1 | ||
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Pop music -- See Popular music --see also headings for music of individual instruments followed by the qualifier "(Popular music)" and the subdivisions Methods (Popular music) and Studies and exercises (Popular music) under individual musical instruments and families of instruments |
1 | ||
| Pop-up books -- See also Toy and movable books | 1 | ||
| Popenoe, Wilson : Rosengarten, Frederic, | c1991 | 1 | |
| Poplar | 2 | ||
| Poplar -- Adaptation : Stettler, R. F. | c2009 | 1 | |
| Poplar -- Canada | 1968 | 1 | |
| Poplar -- Congresses : International Poplar Commission. | 2000 | 1 | |
| Poplar -- Evolution : Stettler, R. F. | c2009 | 1 | |
| Poplar -- Genetics : Stettler, R. F. | c2009 | 1 | |
| Poplar -- Mexico -- Jalisco : Martínez González, Rosa Elena | 2002 | 1 | |
| Poplars -- See Poplar | 1 | ||
| Popol buj -- See Popol vuh | 1 | ||
| Popol uuj -- See Popol vuh | 1 | ||
| Popol vuh | 1986 | 1 | |
| Popol vuj -- See Popol vuh | 1 | ||
| Popolʹ-vukh -- See Popol vuh | 1 | ||
| Popol wuh -- See Popol vuh | 1 | ||
| Poppies -- See also Opium poppy | 1 | ||
| Poppies | 3 | ||
| Poppies, Asiatic -- See Meconopsis | 1 | ||
| Poppies -- Catalogs : W.R. LeGron (Nursery) | 1938 | 1 | |
| Poppies, Himalayan -- See Meconopsis | 1 | ||
| Poppies -- History : Lack, Andrew | 2016 | 1 | |
| Poppies -- Social aspects -- History : Lack, Andrew | 2016 | 1 | |
| Poppies -- Utilization -- History : Lack, Andrew | 2016 | 1 | |
| Poppy, Oil -- See Opium poppy | 1 | ||
| Poppy, Opium -- See Opium poppy | 1 | ||
| Poppy, Seed -- See Opium poppy | 1 | ||
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Popular arts -- See Popular culture --subdivision In popular culture under names of countries, cities, etc |
1 | ||
| Botany -- Popular : Rossiter, William | 1867 | 1 | |
| Popular culture -- 2 Related Subjects | 2 | ||
| Popular culture | 2 | ||
| Popular culture -- Great Britain -- History -- 19th century | 2016 | 1 | |
| Popular culture -- United States -- History -- 19th century : Anderson, Ann, | 2000 | 1 | |