Cromwell, G. (2022). Geology and hydrogeology of the Yucaipa groundwater subbasin, San Bernardino and Riverside Counties, California. U.S. Department of the Interior, U.S. Geological Survey.
Chicago-Zitierstil (17. Ausg.)Cromwell, Geoffrey. Geology and Hydrogeology of the Yucaipa Groundwater Subbasin, San Bernardino and Riverside Counties, California. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2022.
MLA-Zitierstil (9. Ausg.)Cromwell, Geoffrey. Geology and Hydrogeology of the Yucaipa Groundwater Subbasin, San Bernardino and Riverside Counties, California. U.S. Department of the Interior, U.S. Geological Survey, 2022.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.