000 00272nam a2200109Ia 4500
008 160710s1941 xx 000 0 und d
100 _aCLARK,C.C.JOHNSON,C.A & COCKADAY,L.M
245 _aTHIS PHYSICAL WORLD
260 _bMCGRAW HILL
_c1941
300 _a528
942 _2ddc
_cB
999 _c5854
_d5854