Mary L Rush <br/><br/>
The Language of classifications : animals : a programmed book 

 - The Alexander Graham Bell Asso. for the Deaf, Washington  1975 
 - 103p 
<br/><br/><label>ISBN: </label>0-88200-068-3 
<br/><br/><label>Dewey Class. No.: </label>371.912 Rus