=LDR 22 4500 =001 1367 =082 04$a910.02 KUM =100 1\$aKump, Lee R. =245 10$aThe Earth System =260 \\$aHarlow :$bPearson Education,$c1999 =650 \0$aBooks =700 1\$aKasting, James F. =700 1\$aCrane, Robert G. =852 \\$bFreeman Library$h910.02 KUM