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Symposium Weed control in tropical crops : papers presented at the ninth pest control council of the Philippines conference commemorating the tenth anniversary of the Weed science society of the Philippines, Inc. : Philippine international convention center, Manila, May 3-6, 1978 / [ed. Keith Moody].
- 853
- Philippine council for agriculture and resources research. Weed science society of the Philippines,
- 1979.
- Los Baños :
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Report of a rice cold tolerance workshop / [contrib. by G.S. Chung...et al.].
- International rice research institute (IRRI),
- 1979.
- Los Baños :