APA (7th ed.) Citation

Luttrell, G. L. W., Hubert, M. L., & Murdock, C. R. (1991). Lexicon of new formal geologic names of the United States 1981-1985. Government Printing Office.

Chicago Style (17th ed.) Citation

Luttrell, Gwendolyn Lewise Werth, Marilyn L. Hubert, and Cynthia R. Murdock. Lexicon of New Formal Geologic Names of the United States 1981-1985. Washington: Government Printing Office, 1991.

MLA (9th ed.) Citation

Luttrell, Gwendolyn Lewise Werth, et al. Lexicon of New Formal Geologic Names of the United States 1981-1985. Government Printing Office, 1991.