APA (7th ed.) Citation

Durum, W. H., Heidel, S. G., & Hem, J. D. (1971). Reconnaissance of selected minor elements in surface waters of the United States, October 1970. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Durum, W. H., Sumner Griggs Heidel, and John David Hem. Reconnaissance of Selected Minor Elements in Surface Waters of the United States, October 1970. Washington: United States Department of the Interior, Geological Survey, 1971.

MLA (9th ed.) Citation

Durum, W. H., et al. Reconnaissance of Selected Minor Elements in Surface Waters of the United States, October 1970. United States Department of the Interior, Geological Survey, 1971.