Roberts, A. E. (1986). Geology and geochemistry of the Upper Miocene phosphate deposit near New Cuyama, Santa Barbara County, California. US Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Roberts, Albert E. Geology and Geochemistry of the Upper Miocene Phosphate Deposit Near New Cuyama, Santa Barbara County, California. Washington, DC: US Gov. Print. Off, 1986.
MLA-Zitierstil (9. Ausg.)Roberts, Albert E. Geology and Geochemistry of the Upper Miocene Phosphate Deposit Near New Cuyama, Santa Barbara County, California. US Gov. Print. Off, 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.