Better Freshwater Fish-farming 

 - Food and Agriculture Organization of the United Nations (FAO)  1986 
 - 61p. 
<br/><br/><label>ISBN: </label>92-5-102161-9 
<br/><br/><label>Nat. Bib. No.: </label>6678 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Agriculture
<br/><br/><label>Universal Decimal Class. No.: </label>630  / BET