Biological abstracts 

 - Philadelphia, Pa. :  Biosciences Information Service (BIOSIS), 
 - Irregular 
<br/><br/><label>ISSN: </label>0006-3169 
 = Biological abstracts 
 = Biol. Abstr. 
<br/><br/><label>Subjects--Index Terms: </label>BIOLOGIA BIBLIOGRAFIA;  INDICES