00489nam a22001577a 4500003000400000005001700004008004100021040002600062082002800088100001800116245006400134260004200198300003900240650003100279650002100310OSt20260515072431.0260515b        |||||||| |||| 00| 0 eng d  aLCbENGcLCdABKeRDA  223rd ed.a577.0911bMAY  aMayer ,Cassie  aPolar Region :bAcorn living and nonliving /cCassie Mayer.  aU.S.A. :bHeinemann library,cc 2008.  a24 pages :billustrations,c17 cm.  a1. Ecology...polar regions  a2. Polar regions