Volpe, E P <br/><br/>
Frog germ cells.  [electronic resource] 

 -  Science (New York, N.Y.)  Jul 1968 
 - 396 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0036-8075 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Anura--embryology<br/>Blood Circulation<br/>Germ Cells<br/>Gonads--embryology