APA (7th ed.) Citation

Cross, W., Howe, E., & Ransome, F. L. (1905). Geologic atlas of U.S.: Silverton folio, Colorado. [publisher not identified].

Chicago Style (17th ed.) Citation

Cross, Whitman, Ernest Howe, and Frederick Leslie Ransome. Geologic Atlas of U.S.: Silverton Folio, Colorado. Washington, D.C.: [publisher not identified], 1905.

MLA (8th ed.) Citation

Cross, Whitman, et al. Geologic Atlas of U.S.: Silverton Folio, Colorado. [publisher not identified], 1905.