TY  - BOOK
TI  - The philippines recommends for soil fertility management
SN  - 9712004570
PY  - 1999///
CY  - Los Banos, Laguna
PB  - PCARRD
KW  - Soil fertility
KW  - sears
N1  - (Phil. Recommends Series No. 36-C; References: p. 111-112
ER  -