Hughes, O. L. (1969). Distribution of open-system pingos in central Yukon Territory with respect to glacial limits. Queen's Press.
Chicago-Zitierstil (17. Ausg.)Hughes, Owen L. Distribution of Open-system Pingos in Central Yukon Territory with Respect to Glacial Limits. Ottawa: Queen's Press, 1969.
MLA-Zitierstil (9. Ausg.)Hughes, Owen L. Distribution of Open-system Pingos in Central Yukon Territory with Respect to Glacial Limits. Queen's Press, 1969.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.