000			00323nam a2200145Ia 4500
008			180612s9999||||xx |||||||||||||| ||und||
020			_a70371814
041			_aen
082			_a301
100			_aLenski,Gerhard
245		0	_aHuman Societies
260			_aNew York _bMcGraw-Hill _c1972
300			_axv,501p.
942			_cPR
999			_c49018 _d49018