TY - BOOK AU - DOORNKAMP, JOHN C. TI - NUMERICAL ANALYSIS IN GEOMORPHOLOGY AN INTRODUCTION T2 - 0 SN - 0-7131-5589-2 U1 - 551.4 PY - 1971/// CY - LONDON-U.S.A. PB - EDWARD ARNOLD KW - CIENCIAS PURAS ER -