Sukhpal Singh. (2004). Rural marketing: Focus on agricultural inputs. Vikas.
Chicago Style aipamenaSukhpal Singh. Rural Marketing: Focus on Agricultural Inputs. New Delhi: Vikas, 2004.
MLA aipamenaSukhpal Singh. Rural Marketing: Focus on Agricultural Inputs. Vikas, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.