000 00332nam a22001097a 4500
082 _a666.94 PON
100 _aG.Ponnamperuma
245 _aPortland Cement and Other Materials
260 _aLondon
_bImperial College of Science and Technology
_c1949
650 _aScience and Technology
_aPortland Cement and Other Materials
942 _cREF
999 _c3674
_d3674