Suresh, D. (2012). Organic farming: Principles,prospects and problems. Agrobios.
Chicago Style aipamenaSuresh, Deshmukh. Organic Farming: Principles,prospects and Problems. India: Agrobios, 2012.
MLA aipamenaSuresh, Deshmukh. Organic Farming: Principles,prospects and Problems. Agrobios, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.