00583nam a2200169Ia 4500003000900000008004100009040001600050080002100066110003100087245016600118250001300284260004800297300000800345650002200353650002000375650001800395IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a69.01:624bIND-9  aBureau of Indian Standards 0aIndian standard: method of measurement of building and civil engineering worksbpt.9, roof coveringcBureau of Indian Standards                                    a10th ed.  aNew DelhibBureau of Indian Standardsc2008  a9p.  aCivil engineering  aIndian standard  aRoof covering