000 00301nam a2200109Ia 4500
008 160710s1958 xx 000 0 und d
100 _aGRAY,P.G.
245 _aNOISE IN THREE GROUPS OF FLATS WITH DIFFERRENT FLOOR INSULATIONS
260 _aLONDON
_bHER MAJESTY'S
_c1958
300 _a60
942 _2ddc
_cB
999 _c23939
_d23939