Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.