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

APA Zitierstil

Kempton, J. P., & Hackett, J. E. (1968). Stratigraphy of the woodfordian and altonian drifts of Central northern Illinois. - Urbana-Champaign, IL.

Chicago Zitierstil

Kempton, John P., and James E. Hackett. Stratigraphy of the Woodfordian and Altonian Drifts of Central Northern Illinois. - Urbana-Champaign, IL. 1968.

MLA Zitierstil

Kempton, John P., and James E. Hackett. Stratigraphy of the Woodfordian and Altonian Drifts of Central Northern Illinois. - Urbana-Champaign, IL. 1968.