Gaya APA

Williams, C, N., Joseph, K, T. (1970). Climate Soil and Crop Production in the Humid Tropics (Revised). Kuala Lumpur: Oxford University Press.

Gaya MLA

Williams, C., N.., Joseph, K., T.. "Climate Soil and Crop Production in the Humid Tropics". Revised Kuala Lumpur: Oxford University Press, 1970. Text.