APA (7th ed.) Citation

Dietrich, J. A., Cooley, E. F., & Curry, K. J. (1977). A device for automatic photoelectric control of the analytical gap for emission spectrographs. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Dietrich, John A., Elmo F. Cooley, and Kenneth J. Curry. A Device for Automatic Photoelectric Control of the Analytical Gap for Emission Spectrographs. [Reston, Virginia]: United States Department of the Interior, Geological Survey, 1977.

MLA (9th ed.) Citation

Dietrich, John A., et al. A Device for Automatic Photoelectric Control of the Analytical Gap for Emission Spectrographs. United States Department of the Interior, Geological Survey, 1977.