APA引文

Chopra, S., & Kanwar, J. (1959). Practical Agricultural Chemistry. S.Chand & company.

Chicago Edition Citation

Chopra, S.L, and J.S Kanwar. Practical Agricultural Chemistry. Delhi: S.Chand & company, 1959.

MLA引文

Chopra, S.L, and J.S Kanwar. Practical Agricultural Chemistry. S.Chand & company, 1959.

警告：这些引文格式不一定是100％准确.