Phosphorus requirements for sustainable agriculture in Asia and Oceania :   proceedings of a symposium 6 - 10 march 1989 

 - Manila :   Phillippines,  1990. 
 - 478 p. :  ill., tbl. , map. ;  25 cm. 
<br/><br/><label>ISBN: </label>9712200027 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Asia<br/>Agriculture--Oceania
<br/><br/><label>Dewey Class. No.: </label>338.1  / INT 1990