Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.
APA Citation Edition CitationFryxell, R. (1965). Mazama and Glacier Peak volcanic ash layers: Relativ ages.- Washington, D.C.
Chicago Citation Edition CitationFryxell, Roald. Mazama and Glacier Peak Volcanic Ash Layers: Relativ Ages.- Washington, D.C. 1965.
MLA Citation Edition CitationFryxell, Roald. Mazama and Glacier Peak Volcanic Ash Layers: Relativ Ages.- Washington, D.C. 1965.
