INDIAN STANDARDS INSTITUTION
Indian Standard Methods of Test for Soils Part XXII Determination of Organic Matter IS 2720-1972 - New Delhi Indian Standard Institution 1972 - 10p
IS:2720(p-22)-1972
Indian Standard Methods of Test for Soils Part XXII Determination of Organic Matter IS 2720-1972 - New Delhi Indian Standard Institution 1972 - 10p
IS:2720(p-22)-1972