Roy, S. (1990). Agriculture and technology in developing countries: India and Nigeria. Sage Publications.
芝加哥风格引文Roy, Sumit. Agriculture and Technology in Developing Countries: India and Nigeria. New Delhi ; Newbury Park: Sage Publications, 1990.
MLA引文Roy, Sumit. Agriculture and Technology in Developing Countries: India and Nigeria. Sage Publications, 1990.
警告：这些引文格式不一定是100％准确.