Mercado, B., & Swarbrick, J. (1987). Weed science weed control Southeast Asia. Food and Agriculture Organization of the United Nations.
Lua i Stíl Chicago (17ú heag.)Mercado, B.L, agus J.T Swarbrick. Weed Science Weed Control Southeast Asia. Rome: Food and Agriculture Organization of the United Nations, 1987.
Lua MLA (9ú heag.)Mercado, B.L, agus J.T Swarbrick. Weed Science Weed Control Southeast Asia. Food and Agriculture Organization of the United Nations, 1987.
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