000 00287nam a22001337a 4500
050 _aMED. HB851
_bP46
100 _aPetersen, W.
245 _aPopulation
250 _a2nd ed.
260 _aLondon
_bMacmillan Company
_c1970
300 _axv, 735p.
650 _aPopulation
942 _cBK
999 _c12414
_d12414