APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.