Interior, U. S. D. o. t. (1982). Generalized geologic map of Alabama / [peta]. Washington DC : U S Government Printing Office.
Citazione stile Chigago Style (17a edizione)Interior, United States. Department of the. Generalized Geologic Map of Alabama / [peta]. Washington DC : U S Government Printing Office, 1982.
Citatione MLA (9a ed.)Interior, United States. Department of the. Generalized Geologic Map of Alabama / [peta]. Washington DC : U S Government Printing Office, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.