TY  - BOOK
ED  - The International Rice Research Institute, 
TI  - Chemical properties of soils: slide-tape instructional unit SR-3
T2  - Rice production training series
AV  - S592.5 C44  
PY  - 0000///[date of publication not identified]
CY  - Los Banos Laguna
PB  - The International Rice Research Institute
KW  - Soil chemistry
ER  -