=LDR 22 4500 =001 5530 =082 04$a551.4 COA =100 1\$aCoates, Donald R. =245 10$aThresholds in Geomorphology: papers from the 9th annual geomorphology symposium held at State University of New York at Binghamton, 1980 =260 \\$aLondon :$bGeorge Allen and Unwin,$c1980 =650 \0$aBooks =700 1\$aVitek, John D. =852 \\$bFreeman Library$h551.4 COA