TY  - BOOK
AU  - Ramos, Mila Medina, comp.
TI  - International bibliography on cropping systems, 1975
U1  - 016.63158 23
PY  - 1977///
CY  - Manila
PB  - International Rice Research Institute
KW  - Cropping systems
KW  - Bibliography
N1  - Supplement to International bibliography on cropping systems, 1973-1974; Includes indexes
ER  -