Biological abstracts  [microform]. 

 - Philadelphia :  Bioscience Information Services,  1926. 
 - 180 microfiches ;  11 x 15 cm. 
 - Semimonthly 
<br/><br/> Refer Science Finder Scholar.  Copyright 1990. 
<br/><br/><label>ISSN: </label>0006-3169 
 = Biological abstracts 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--Periodicals.<br/>Biology--Abstracts--Periodicals.