000 00293nam a2200121Ia 4500
008 160710s1954 xx 000 0 und d
082 _a333.7 BRO
100 _aBROWN ,HARRISON
245 _aTHE CHALLENGE OF MAN'S FUTURE
260 _bSECKER &WARBURG
_c1954
300 _a290
942 _2ddc
_cB
999 _c16380
_d16380