000 00245nam a2200097Ia 4500
008 160710s1956 xx 000 0 und d
100 _aMACHMILLAN AND CO
245 _aNATURE JULY TO DEC 1956
260 _bMACHMILLAN AND CO
_c1956
942 _2ddc
_cB
999 _c18761
_d18761