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

APA Zitierstil

Vail, J. R. (1971). Geological reconnaissance in part of Berber District, Northern Province, Sudan. [Khartoum]: Geological Survey Department.

Chicago Zitierstil

Vail, J. R. Geological Reconnaissance in Part of Berber District, Northern Province, Sudan. [Khartoum]: Geological Survey Department, 1971.

MLA Zitierstil

Vail, J. R. Geological Reconnaissance in Part of Berber District, Northern Province, Sudan. [Khartoum]: Geological Survey Department, 1971.