Butt, A. (1981). Depositional environments of the upper cretaceous rocks in the northern part of the eastern Alps.
Chicago-Zitierstil (17. Ausg.)Butt, Arif. Depositional Environments of the Upper Cretaceous Rocks in the Northern Part of the Eastern Alps. Washington, D.C, 1981.
MLA-Zitierstil (9. Ausg.)Butt, Arif. Depositional Environments of the Upper Cretaceous Rocks in the Northern Part of the Eastern Alps. 1981.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.