K Nirmal Ravi Kumar. (2014). Agricultural Marketing: Vol II. Astral.
Chicago Style aipamenaK Nirmal Ravi Kumar. Agricultural Marketing: Vol II. New Delhi: Astral, 2014.
MLA aipamenaK Nirmal Ravi Kumar. Agricultural Marketing: Vol II. Astral, 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.