Grewal,J S, Saini,S S, & Sharma,R C. (1992). Agrotechniques for intensive potato cultivation in India. ICAR.
Chicago Style aipamenaGrewal,J S, Saini,S S, and Sharma,R C. Agrotechniques for Intensive Potato Cultivation in India. New Delhi: ICAR, 1992.
MLA aipamenaGrewal,J S, et al. Agrotechniques for Intensive Potato Cultivation in India. ICAR, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.