INDIAN STANDARDS INSTITUTION
Indian Standard Classifiaction and Identification of Soils for General Engineering Purpose IS-1911-1967 - New Delhi Indian Standard Institution 1972 - 17p
IS:1498-1970
Indian Standard Classifiaction and Identification of Soils for General Engineering Purpose IS-1911-1967 - New Delhi Indian Standard Institution 1972 - 17p
IS:1498-1970