APA (7th ed.) Citation

Geological Survey (U.S.), Saudi Arabia. Wizārat al-Batrūl wa-al-Tharwah al-Maʻdinīyah, & Thornber, C. R. (1990). Geologic map of Harrat Hutaymah, with petrologic classification and distribution of ultramafic inclusions, Saudi Arabia. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Saudi Arabia. Wizārat al-Batrūl wa-al-Tharwah al-Maʻdinīyah, and Carl R. Thornber. Geologic Map of Harrat Hutaymah, with Petrologic Classification and Distribution of Ultramafic Inclusions, Saudi Arabia. Reston, Va.: The Survey, 1990.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geologic Map of Harrat Hutaymah, with Petrologic Classification and Distribution of Ultramafic Inclusions, Saudi Arabia. The Survey, 1990.