O'Connor, J. V. (1989). Engineering geology of Washington, D.C: Washington, D.C. to Greenbelt, Maryland, July 14, 1989. American Geophysical Union.
Chicago-Zitierstil (17. Ausg.)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-Zitierstil (9. Ausg.)O'Connor, James V. Engineering Geology of Washington, D.C: Washington, D.C. to Greenbelt, Maryland, July 14, 1989. American Geophysical Union, 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.