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Potassium and ammonium fixation in Indian soils :
a review /
J.S. Grewal and J.S. Kanwar.

APA Citation

Grewal, J. S., Kanwar, J. Singh. (1976). Potassium and ammonium fixation in Indian soils: a review. New Delhi: Indian Council of Agricultural Research.

MLA Citation

Grewal, J. S, and Jaswant Singh Kanwar. Potassium And Ammonium Fixation In Indian Soils: a Review. New Delhi: Indian Council of Agricultural Research, 1976.

Warning: These citations may not always be complete (especially for serials).