Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Barbour, E. H. (1901). Sand crystals and their relation to certain concretionary forms. - Boulder, CO.

Chicago Citation Edition Citation

Barbour, Erwin Hinckley. Sand Crystals and Their Relation to Certain Concretionary Forms. - Boulder, CO. 1901.

MLA Citation Edition Citation

Barbour, Erwin Hinckley. Sand Crystals and Their Relation to Certain Concretionary Forms. - Boulder, CO. 1901.