Soil and crop productivity; a hand book for the use of workers in agriculture extension, vocational agriculture and farmers in India. - Govinda Rajan, S.V. (New York Asia Publishing, 1971)
Keywords: S.V.Govinda Rajan and H.G.Gopala Rao; Gopala Rao, H.G.; Soil composition-India,Soil classification-India,Plant-soil relationships,Soil testing-India