http://www.searchanddiscovery.net

http://www.usgs.gov/

Boggs Jr., Sam, Principles of Sedimentology and stratigraphy, Prentice Hall, New Jersey, 1995.

Carter, R.W.G. and C.D. Woodroffe, Coastal Evolution, Press Syndicate of the University of Cambridge, 1994.

Hamblin, W. Kenneth, The Earth's Dynamic Systems, Fifth Edition, Macmillan Publishing Company, New York, 1989.

Monroe, James S. and Reed Wicander, Physical Geology: Exploring the Earth, West Publishing Company, New York, 1995.

McGeary, David and Charles C. Plummer, Physical Geology, Wm.C.Brown Publishers and Times Mirror Higher Education Group, Inc., Iowa, 1996.

Prothero, Donald R., Interpreting the Stratigraphic Record, W.H.Freeman and Company, New York, 1990.

Scholle, Peter A. and Darwin Spearing, Sandstone Depositional Environments, The American Association of Petroleum Geologists, George Banta Company, Wisconsin, 1982.