=LDR 22 4500 =001 4938 =082 04$a550 MAT =100 1\$aMatthews, William H. =245 10$aScientific American Resource Library: Readings in the Earth Sciences vol. 1 =260 \\$bW. H. Freeman and Co.,$c1969 =650 \0$aBooks =852 \\$bGeography Basement$h550 MAT