000 00305nam a2200109Ia 4500
008 160710s1949 xx 000 0 und d
100 _aAMERICAN SOCIETY
245 _aSYMPOSIUM ON USE OF POGGOLANIC MATERIALS IN MORTARS AND CONCRETES
260 _bAMERICAN SOCIETY
_c1949
300 _a203
942 _2ddc
_cB
999 _c20055
_d20055