Delos Trinos, Reynald A. <br/><br/>
Tilapia production systems in Cagayan Valley an analysis of profitability and technical efficiency / 
Reynald A. Delos Trinos. 
 - Muņoz, Nueva Ecija :  Central Luzon State University,  2003. 
 - xxi, 153 pages :  illustrations ;  28 cm. 
<br/><br/> Thesis (PhD Aquaculture) Central Luzon State University 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fishes<br/>Tilapia--Philippines--Cagayan Valley<br/>Fish culture--Philippines--Cagayan Valley
<br/><br/><label>Dewey Class. No.: </label>597  / T73 2003