Thornbury, By William D. Principles of Geomorphology / by William D. Thornbury - 2nd ed. - New Delhi: CBS Publishers & Distributors, 2004. - xi, 594p. ISBN: 9788123908113 Subjects--Topical Terms: Earth ScienceFluvial CycleGeomorphologyPaleogeomorphology Dewey Class. No.: 551.41 / THO/P