Gasparin, Agénor, comte de, 1810-1871, author.
New York : Charles Scribner, 
 
Fourth edition. 
 
1 online resource (x, 9-263 pages).
1861
 
 
Gasparin, Agénor, comte de, 1810-1871, author.
New York : Charles Scribner, 
 
New American edition, from the author's revised edition. 
 
1 online resource (xiv, 9-298 pages).
1862