Jocher, Willy <br/><br/>
Spawning problem fishes /  
Willy Jocher 
 - Jersey City:  T.F.H. Publications,  1972 
 - 96p.:  il., p&b, color.; 20 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Peixes
<br/><br/><label>Dewey Class. No.: </label>597