APA (7th ed.) Citation

Tilling, R. I., & Gottfried, D. (1969). Distribution of thorium, uranium, and potassium in igneous rocks of the Boulder batholith region, Montana, and its bearing on radiogenic heat production and heat flow. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Tilling, Robert I., and David Gottfried. Distribution of Thorium, Uranium, and Potassium in Igneous Rocks of the Boulder Batholith Region, Montana, and Its Bearing on Radiogenic Heat Production and Heat Flow. Washington: United States Department of the Interior, Geological Survey, 1969.

MLA (9th ed.) Citation

Tilling, Robert I., and David Gottfried. Distribution of Thorium, Uranium, and Potassium in Igneous Rocks of the Boulder Batholith Region, Montana, and Its Bearing on Radiogenic Heat Production and Heat Flow. United States Department of the Interior, Geological Survey, 1969.