Chopra, S., & Kanwar, J. (1959). Practical Agricultural Chemistry. S.Chand & company.
Chicago Stili AlıntıChopra, S.L, ve J.S Kanwar. Practical Agricultural Chemistry. Delhi: S.Chand & company, 1959.
MLA AlıntıChopra, S.L, ve J.S Kanwar. Practical Agricultural Chemistry. S.Chand & company, 1959.
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