000 00382nam a2200157Ia 4500
008 200208s9999 xx 000 0 und d
082 _aGL 612.6 WAL
100 _a"Walker, Kenneth"
245 0 _aPhysiology of sex and its social implications
260 _aMiddlesex
260 _bPenguin Books
260 _c1949
300 _a157p.
650 _aSex (biology)
942 _cB
999 _c193904
_d193904