Powars, D. S. (2000). The effects of the Chesapeake Bay impact crater on the geologic framework and the correlation of hydrogeologic units of southeastern Virginia, south of the James River. US Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Powars, David S. The Effects of the Chesapeake Bay Impact Crater on the Geologic Framework and the Correlation of Hydrogeologic Units of Southeastern Virginia, South of the James River. Washington, DC: US Gov. Print. Off, 2000.
MLA-Zitierstil (9. Ausg.)Powars, David S. The Effects of the Chesapeake Bay Impact Crater on the Geologic Framework and the Correlation of Hydrogeologic Units of Southeastern Virginia, South of the James River. US Gov. Print. Off, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.