Proceedings, Iowa Academy of Science 

 - DES MOINES, IOWA :  IOWA ACADEMY OF SCIENCE, 
 - Anual 
<br/><br/><label>ISSN: </label>0085-2236 
 = Proceedings, Iowa Academy of Science 
 = PROC. IOWA ACAD. SCI. 
<br/><br/><label>Subjects--Index Terms: </label>CIENCIAS EN GENERAL