APA (7e ed.) Bronvermelding
O'Neill, T., & Block, I. Back Roads America: A Portfolio of Her People. National Geographic Society, Special Publications Division.
Chicago (17e ed.) Bronvermelding
O'Neill, Tom, en Ira Block. Back Roads America: A Portfolio of Her People. Washington, EUA: National Geographic Society, Special Publications Division.
MLA (9e ed.) Bronvermelding
O'Neill, Tom, en Ira Block. Back Roads America: A Portfolio of Her People. National Geographic Society, Special Publications Division.
Let op: Deze citaties zijn niet altijd 100% accuraat.