Witkind, I. J. (1986). Age and correlation of cretaceous rocks previously assigned to the Morrison (?) Formation, Sanpete-Sevier Valley Area, Central Utah.
Chicago-Zitierstil (17. Ausg.)Witkind, Irving J. Age and Correlation of Cretaceous Rocks Previously Assigned to the Morrison (?) Formation, Sanpete-Sevier Valley Area, Central Utah. Washington, 1986.
MLA-Zitierstil (9. Ausg.)Witkind, Irving J. Age and Correlation of Cretaceous Rocks Previously Assigned to the Morrison (?) Formation, Sanpete-Sevier Valley Area, Central Utah. 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.