APA-referens (7:e uppl.)

Wahl, K. D., Harris, W. F., & Jefferson, P. O. (1971). Water resources and geology of Winston County, Alabama. Division of Water Resources.

Chicago-referens (17:e uppl.)

Wahl, Kenneth D., Wiley F. Harris, och Patrick O. Jefferson. Water Resources and Geology of Winston County, Alabama. University, Ala.: Division of Water Resources, 1971.

MLA-referens (8:e uppl.)

Wahl, Kenneth D., et al. Water Resources and Geology of Winston County, Alabama. Division of Water Resources, 1971.