000			00444cam a2200169 a 4500
999			_c11131 _d11131
020			_a0870447343
082	0	0	_aCir 550 N21 1988
245	0	0	_aLiving on the earth
250			_a1st ed.
260			_aWashington, D.C. : _bNational Geographic Society, _cc1988.
300			_a320 p. : _bcol. ill. ; _c28 cm.
504			_aBibliography: p. 315.
526			_a300-399
650		0	_aHuman ecology.
650		0	_aHuman geography.
942			_2ddc _cBK