Thornberry, T. L. (2008). National Capital Parks-East: Geologic resource evaluation report. Geologic Resources Division, Natural Resource Program Center ; U.S. Department of the Interior.
Chicago Style (17th ed.) CitationThornberry, Trista L. National Capital Parks-East: Geologic Resource Evaluation Report. Denver, Colorado : Washington, D.C.: Geologic Resources Division, Natural Resource Program Center ; U.S. Department of the Interior, 2008.
MLA (9th ed.) CitationThornberry, Trista L. National Capital Parks-East: Geologic Resource Evaluation Report. Geologic Resources Division, Natural Resource Program Center ; U.S. Department of the Interior, 2008.
Warning: These citations may not always be 100% accurate.