Jocher, Willy   x <br/><br/>
Spawning problem fishes   x 

 - x 
 - N. Y.   I.F.-H.   1972 
 - x  
<br/><br/>
<br/><br/><label>ISBN: </label>x  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fishes  Zoology  
<br/><br/><label>Dewey Class. No.: </label>REF/597/JOS