APA citáció

El-Kammar A. M., Shaalan M. B., & Osman H. M. (1981). Geochemistry of Ankur iron ore deposits, NE Sudan. Szeged.

Chicago Style (17th ed.) Citation

El-Kammar A. M., Shaalan M. B., and Osman H. M. Geochemistry of Ankur Iron Ore Deposits, NE Sudan. University of Szeged, Department of Mineralogy, Geochemistry and Petrology: Szeged, 1981.

MLA idézés

El-Kammar A. M., et al. Geochemistry of Ankur Iron Ore Deposits, NE Sudan. Szeged, 1981.