000			00345nam a2200133Ia 4500
008			180611s9999||||xx |||||||||||||| ||und||
041			_aen
082			_a560.45
100			_aAger,Derek V
245		0	_aPricviples of Paleoecology, an introduction to the study of
260			_bNY. Mc-Graw-Hill book co. _c1963
300			_axi,371p,il
942			_cLL
999			_c691 _d691