APA (7th ed.) Citation

Drake, A. A., & Morgan, B. A. (1980). Tectonic studies in the Brazilian shield. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Drake, Avery Ala, and Benjamin A. Morgan. Tectonic Studies in the Brazilian Shield. Washington: United States Department of the Interior, Geological Survey, 1980.

MLA (9th ed.) Citation

Drake, Avery Ala, and Benjamin A. Morgan. Tectonic Studies in the Brazilian Shield. United States Department of the Interior, Geological Survey, 1980.