APA (7th ed.) Citation

Bramkamp, R. A., & Ramirez, L. F. (1961). Geology of the northeastern Rub al Khali quadrangle, Kingdom of Saudi Arabia. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Bramkamp, Richard A., and Leon F. Ramirez. Geology of the Northeastern Rub Al Khali Quadrangle, Kingdom of Saudi Arabia. Washington, D.C.: U.S. Geological Survey, 1961.

MLA (9th ed.) Citation

Bramkamp, Richard A., and Leon F. Ramirez. Geology of the Northeastern Rub Al Khali Quadrangle, Kingdom of Saudi Arabia. U.S. Geological Survey, 1961.