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

APA Citation Edition Citation

Horberg, L. (1956). Pleistocene deposits along the Mississippi Valley in Central Western Illinois.- Urbana, IL.

Chicago Citation Edition Citation

Horberg, Leland. Pleistocene Deposits Along the Mississippi Valley in Central Western Illinois.- Urbana, IL. 1956.

MLA Citation Edition Citation

Horberg, Leland. Pleistocene Deposits Along the Mississippi Valley in Central Western Illinois.- Urbana, IL. 1956.