Biological and agricultural index. 

 - New York :    The H.W.Wilson Co.,    1975- 
 - v. ;    26 cm. 
 - Annual 
 - Vol. 28 (Aug. 1973). 
<br/><br/>  Latest issue consulted: Vol. 62, no. 9 (May 1977). 
<br/><br/><label>Dewey Class. No.: </label>016.6305