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.
9712200027
Agriculture--Asia
Agriculture--Oceania
338.1 / INT 1990
9712200027
Agriculture--Asia
Agriculture--Oceania
338.1 / INT 1990