Patel, D. (1970). Farm costing in India. Atul prakashan.
Chicago Style aipamenaPatel, D.P. Farm Costing in India. Gujarath: Atul prakashan, 1970.
MLA aipamenaPatel, D.P. Farm Costing in India. Atul prakashan, 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.