Encyclopedia Americana  volume 29: Wilmot Proviso to Zygote/ 

 - International  Edition 
 - Danbury, Connecticut:  Scholastic Publishing,  2006. 
 - 828 pages:  images  26 cm. 
<br/><br/><label>ISBN: </label>0717201392 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries.
<br/><br/><label>Dewey Class. No.: </label>031  / En192