00371nam a2200133Ia 4500008004100000041001200041082001600053100002300069245008500092250001200177260003400189300000800223400000600231231217s9999    xx            000 0 und d  aEnglish  a620.11  ROY  aRoy Chowdhury, K P 0aEngineering materials: As used in India building materials and materials of ....  a7th ed.  c1987bNew Delhi : Oxford/IPH,  a365  a&