000 00417cam a22001217a 4500
008 180718b1974 xxu||||| |||| 00| 0 eng d
082 _aX23 N213
245 _aRoofing in developing countries: research for new technologies
260 _aWashington, D.C.
_bNational Research Council
_c1974
300 _a74p.
650 _aBuildings - Design And Plans
700 _aNational Academy of Sciences. National Research Council
999 _c477151
_d477151