000			00386nam a2200145Ia 4500
003			PILC
008			150929s1994||||xx |||||||||||||| ||und||
040			_cSICM LIBRARY
082			_a363.7 C16o 1994
100			_aCanby, Thomas Y.
245			_aOur changing earth
260			_aWashington, DC. : _bNational Geographic Society, _c1994.
300			_axx, 199 p. ; 260 cm.
942			_2ddc _cBK
999			_c16031 _d16031