000			00643nam a2200229Ia 4500
008			190409s9999 xx 000 0 und d
020			_a1-85435-170-2
082			_aRes 919.8 W67p 1990
100			_aWilliams, Lawrence
245		0	_aPolar lands / Lawrence Williams
260			_aNew York
260			_bMarshall Cavendish
260			_cc1990.
300			_a45 p.
490			_aLast frontiers for mankind
504			_aIncludes bibliographical references and index.
526			_a900-999
650			_aConservation of natural resources.
650			_aPolar regions.
650			_aPolar regions--Juvenile literature.
942			_cBK
999			_c4950 _d4950