Forbes, R. J. (1964). Studies in Ancient Technology. Vol. 1. Bitumen and Petroleum in Antiquity. The Origin of Alchemy. Water Supply. Second ed.
Chicago-Zitierstil (17. Ausg.)Forbes, R. J. Studies in Ancient Technology. Vol. 1. Bitumen and Petroleum in Antiquity. The Origin of Alchemy. Water Supply. Second Ed. Leiden, 1964.
MLA-Zitierstil (8. Ausg.)Forbes, R. J. Studies in Ancient Technology. Vol. 1. Bitumen and Petroleum in Antiquity. The Origin of Alchemy. Water Supply. Second Ed. 1964.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.