00533nam a2200181 a 450000500170000000800410001702000150005804100080007308200080008110000350008924500660012426400390019030000330022950000200026265000190028265000260030165000240032720260717091205.0260717s1976    ii            000 0 eng d  a0060464518  aeng04a5501 aStrahler, Arthur Newell, 1918-10aPrinciples of earth science /cStrahler, Arthur Newell, 1918- 1aNew York :bHarper and Row,c1976.  aviii, 434 p. : ill. ; 28 cm.  aIncludes index. 4aEarth sciences 4aSciences de la terre. 4aPhysische Geografie