00771cam a2200265 4500 122764504 TxAuBib 20011025120000.0 ||||||s1999||||||||||||||||||||||||und|u 9780717293414 0717293416 TxAuBib Allaby, Michael. Polar Regions. Danbury, CT. : Grolier Educational, 1999. 64 pgs., HB, 9 v. : col.ill. Biomes of the World 20011025. Biotic communities Juvenile literature. Life zones Juvenile literature. Ecology Juvenile literature. Index Included. Biomes of the World. TXING