APA aipamena

 K. Nirmal Ravi Kumar. (2023). Objective Agricultural Economics .  Daya Publishing , New Delhi.

Chicago Style aipamena

 K. Nirmal Ravi Kumar. Objective Agricultural Economics .  Daya Publishing , New Delhi, 2023.

MLA aipamena

 K. Nirmal Ravi Kumar. Objective Agricultural Economics .  Daya Publishing , New Delhi, 2023.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.