Ashland, F. X. (2003). Characteristics, causes, and implications of the 1998 Wasatch Front landslides, Utah ([1st ed.].). Utah Geological Survey.
Chicago-Zitierstil (17. Ausg.)Ashland, Francis X. Characteristics, Causes, and Implications of the 1998 Wasatch Front Landslides, Utah. [1st ed.]. Salt Lake City: Utah Geological Survey, 2003.
MLA-Zitierstil (9. Ausg.)Ashland, Francis X. Characteristics, Causes, and Implications of the 1998 Wasatch Front Landslides, Utah. [1st ed.]. Utah Geological Survey, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.