APA (7e ed.) Bronvermelding

Stephenson. A Natural History of the Central Appalachians. West Virginia University Press.

Chicago (17e ed.) Bronvermelding

Stephenson. A Natural History of the Central Appalachians. West Virginia University Press.

MLA (9e ed.) Bronvermelding

Stephenson. A Natural History of the Central Appalachians. West Virginia University Press.

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