APA (7th ed.) Citation

Hobbs, S. W., & Hays, W. H. (1990). Ordovician and older rocks of the Bayhorse Area, Custer County, Idaho: Detailed descriptions and columnar sections of the major stratigraphic units that comprise Ordovician and older strata of unknown age in a structurally complex area. United States Gov. Print. Off.

Chicago Style (17th ed.) Citation

Hobbs, Samuel Warren, and William H. Hays. Ordovician and Older Rocks of the Bayhorse Area, Custer County, Idaho: Detailed Descriptions and Columnar Sections of the Major Stratigraphic Units That Comprise Ordovician and Older Strata of Unknown Age in a Structurally Complex Area. Washington: United States Gov. Print. Off, 1990.

MLA (9th ed.) Citation

Hobbs, Samuel Warren, and William H. Hays. Ordovician and Older Rocks of the Bayhorse Area, Custer County, Idaho: Detailed Descriptions and Columnar Sections of the Major Stratigraphic Units That Comprise Ordovician and Older Strata of Unknown Age in a Structurally Complex Area. United States Gov. Print. Off, 1990.