Imlay, R. W. (1970). Some Jurassic ammonites from central Saudi Arabia: Prepared in cooperation with the Saudi Arabia Ministry of Petroleum and Mineral Resources and the U. S. National Museum, under the sponsorship of the Kingdom of Saudi Arabia and the U. S. Department of State ; descriptions and illustrations of some stratigraphically useful ammonites from Saudi Arabia. U.S. Govt. Print. Off.
Chicago-Zitierstil (17. Ausg.)Imlay, Ralph W. Some Jurassic Ammonites from Central Saudi Arabia: Prepared in Cooperation with the Saudi Arabia Ministry of Petroleum and Mineral Resources and the U. S. National Museum, Under the Sponsorship of the Kingdom of Saudi Arabia and the U. S. Department of State ; Descriptions and Illustrations of Some Stratigraphically Useful Ammonites from Saudi Arabia. Washington: U.S. Govt. Print. Off, 1970.
MLA-Zitierstil (9. Ausg.)Imlay, Ralph W. Some Jurassic Ammonites from Central Saudi Arabia: Prepared in Cooperation with the Saudi Arabia Ministry of Petroleum and Mineral Resources and the U. S. National Museum, Under the Sponsorship of the Kingdom of Saudi Arabia and the U. S. Department of State ; Descriptions and Illustrations of Some Stratigraphically Useful Ammonites from Saudi Arabia. U.S. Govt. Print. Off, 1970.