Force, E. R. (1996). The Bisbee Group of the Tombstone Hills, southeastern Arizona: Stratigraphy, structure, metamorphism, and mineralization. United States Government Printing Office.
Chicago Style (17th ed.) CitationForce, Eric R. The Bisbee Group of the Tombstone Hills, Southeastern Arizona: Stratigraphy, Structure, Metamorphism, and Mineralization. Washington: United States Government Printing Office, 1996.
MLA (9th ed.) CitationForce, Eric R. The Bisbee Group of the Tombstone Hills, Southeastern Arizona: Stratigraphy, Structure, Metamorphism, and Mineralization. United States Government Printing Office, 1996.
Warning: These citations may not always be 100% accurate.