(1975). Ice ages: ancient and modern: The proceedings of the 21st Inter-University Geological Congress held at the University of Birmingham, 2 - 4 January 1974. Seel House Press.
Chicago-Zitierstil (17. Ausg.)Ice Ages: Ancient and Modern: The Proceedings of the 21st Inter-University Geological Congress Held at the University of Birmingham, 2 - 4 January 1974. Liverpool: Seel House Press, 1975.
MLA-Zitierstil (9. Ausg.)Ice Ages: Ancient and Modern: The Proceedings of the 21st Inter-University Geological Congress Held at the University of Birmingham, 2 - 4 January 1974. Seel House Press, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.