Symposium on cropping systems research and development for the Asian rice farmer /
Symposium on cropping systems research and development for the Asian rice farmer /
- Manila : The International Rice Research Institute, 1977.
- 454 pages ; 23 cm.
Cropping systems
Cropping patterns
S 602.5 I57 1977 F
Cropping systems
Cropping patterns
S 602.5 I57 1977 F