Wilson, P. (1990). Characteristics and significance of Protalus ramparts and fossil rock glaciers on Errigal Mountain, County Donegal.
Chicago-Zitierstil (17. Ausg.)Wilson, Peter. Characteristics and Significance of Protalus Ramparts and Fossil Rock Glaciers on Errigal Mountain, County Donegal. Dublin, 1990.
MLA-Zitierstil (9. Ausg.)Wilson, Peter. Characteristics and Significance of Protalus Ramparts and Fossil Rock Glaciers on Errigal Mountain, County Donegal. 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.