WILLIAMS, C. Climate soil and crop production in the humid tropics. Oxfor Univ.Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWILLIAMS, C.N. Climate Soil and Crop Production in the Humid Tropics. Oxfor Univ.Press.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWILLIAMS, C.N. Climate Soil and Crop Production in the Humid Tropics. Oxfor Univ.Press.
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