Παραπομπή APA

Sumit Roy. (1990). Agriculture and technology in developing countries: India and Nigeria. Sage Publications.

Παραπομπή Chicago Style

Sumit Roy. Agriculture and Technology in Developing Countries: India and Nigeria. New Delhi: Sage Publications, 1990.

Παραπομπή MLA

Sumit Roy. Agriculture and Technology in Developing Countries: India and Nigeria. Sage Publications, 1990.