APA (7th ed.) Citation

O'Connor, J. V. (1989). Engineering geology of Washington, D.C: Washington, D.C. to Greenbelt, Maryland, July 14, 1989. American Geophysical Union.

Chicago Style (17th ed.) Citation

O'Connor, James V. Engineering Geology of Washington, D.C: Washington, D.C. to Greenbelt, Maryland, July 14, 1989. Washington, D.C: American Geophysical Union, 1989.

MLA (9th ed.) Citation

O'Connor, James V. Engineering Geology of Washington, D.C: Washington, D.C. to Greenbelt, Maryland, July 14, 1989. American Geophysical Union, 1989.