TY - BOOK AU - Balaraman, N. ED - National Symposium on role of Science and Technology in Environmental Preservation with Special Reference to Hill Development TI - National symposium on role of science and technology in environmental preservation with special reference to hill development U1 - 333.715 21st ed. PY - 1978/// CY - Gangtok PB - Sikkim Science Society KW - Crop production KW - Crops KW - Environmental protection KW - India KW - Land use KW - Natural resources ER -