Keaton, J. R. (1989). Engineering geology of western United States urban centers: Los Angeles, California to Denver, Colorado, June 27-July 7, 1989. American Geophysical Union.
Chicago-Zitierstil (17. Ausg.)Keaton, Jeffrey R. Engineering Geology of Western United States Urban Centers: Los Angeles, California to Denver, Colorado, June 27-July 7, 1989. Washington, D.C: American Geophysical Union, 1989.
MLA-Zitierstil (9. Ausg.)Keaton, Jeffrey R. Engineering Geology of Western United States Urban Centers: Los Angeles, California to Denver, Colorado, June 27-July 7, 1989. American Geophysical Union, 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.