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

APA Citation Edition Citation

Perino, G. (1961). Tentative classification of plummets in the Lower Illinois River Valley. - o.O.

Chicago Citation Edition Citation

Perino, Gregory. Tentative Classification of Plummets in the Lower Illinois River Valley. - O.O. 1961.

MLA Citation Edition Citation

Perino, Gregory. Tentative Classification of Plummets in the Lower Illinois River Valley. - O.O. 1961.