APA (7e ed.) Bronvermelding

Não informado. (2018). Special Publication. University of Kentucky, Kentucky Geological Survey.

Chicago (17e ed.) Bronvermelding

Não informado. Special Publication. Lexington, Ky: University of Kentucky, Kentucky Geological Survey, 2018.

MLA (8e ed.) Bronvermelding

Não informado. Special Publication. University of Kentucky, Kentucky Geological Survey, 2018.

Let op: Deze citaties zijn niet altijd 100% accuraat.