Soil and crop productivity
Govinda Rajan, S.V., Gopala Rao, H.G.
Soil and crop productivity by S.V. Govinda Rajan and H.G. Gopala Rao - Bombay Asia Publishing House 1971 - 314 p.
Soil
Crop Productivity
631.4:633 / G 721 S
Soil and crop productivity by S.V. Govinda Rajan and H.G. Gopala Rao - Bombay Asia Publishing House 1971 - 314 p.
Soil
Crop Productivity
631.4:633 / G 721 S