Black soil of India
Raychaudhuri, S P
Black soil of India - Mathura: National Institute of Science of India, 1963 - iv, 47p.
Agriculture
Soil texture Climate
631.4 / K3
Black soil of India - Mathura: National Institute of Science of India, 1963 - iv, 47p.
Agriculture
Soil texture Climate
631.4 / K3