APA (7th ed.) Citation

Waring, C. L., & Worthing, H. W. (1956). A spectrographic method for determining the hafnium-zirconium ratio in zircon. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Waring, C. L., and H. W. Worthing. A Spectrographic Method for Determining the Hafnium-zirconium Ratio in Zircon. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1956.

MLA (9th ed.) Citation

Waring, C. L., and H. W. Worthing. A Spectrographic Method for Determining the Hafnium-zirconium Ratio in Zircon. United States Department of the Interior, Geological Survey, 1956.