North, B., & North, G. (1990). The best of Britain's countryside: Northern England and Scotland ; a driving & walking itinerary. Mountaineers.
Chicago-Zitierstil (17. Ausg.)North, Bill, und Gwen North. The Best of Britain's Countryside: Northern England and Scotland ; a Driving & Walking Itinerary. Seattle: Mountaineers, 1990.
MLA-Zitierstil (9. Ausg.)North, Bill, und Gwen North. The Best of Britain's Countryside: Northern England and Scotland ; a Driving & Walking Itinerary. Mountaineers, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.