Department Of Science And Technology -Philippine Council for Agriculture Aquatic and Natural Resources Research and Development;  <br/><br/>
The Philippines Recommends For Organic Fertilizer Production And Utilization / 
Department Of Science And Technology -Philippine Council for Agriculture Aquatic and Natural Resources Research and Development;  
 - Manila;   Department Of Science And Technology -Philippine Council for Agriculture Aquatic and Natural Resources Research and Development;   [c1998];  
<br/><br/><label>ISBN: </label>971-20-0445-7;