Dyfyniad APA

Nambiar,KKM. (1994). Soil fertility and crop productivity uner long term fertilizer use in India. ICAR.

Dyfyniad Arddull Chicago

Nambiar,KKM. Soil Fertility and Crop Productivity Uner Long Term Fertilizer Use in India. New Delhi: ICAR, 1994.

Dyfyniad MLA

Nambiar,KKM. Soil Fertility and Crop Productivity Uner Long Term Fertilizer Use in India. ICAR, 1994.

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