Online Public Access Catalogue (OPAC)Library,Documentation and Information Science Division
“A research journal serves that narrow
borderland which separates the known from the unknown”
-P.C.Mahalanobis
691.96021 IS:1346-1959 C14854
Indian Standards Institution Code of practice for water proofing of roofs with bitumen felts New Delhi ISI 1959 * Bitumen felts Bituminous materials Standard