APA (7th ed.) Citation

Cobban, W. A. (1987). The Upper Cretaceous ammonite Rhaeboceras Meek in the western interior of the United States. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Cobban, William A. The Upper Cretaceous Ammonite Rhaeboceras Meek in the Western Interior of the United States. [Reston, Va.]: Dept. of the Interior, U.S. Geological Survey, 1987.

MLA (9th ed.) Citation

Cobban, William A. The Upper Cretaceous Ammonite Rhaeboceras Meek in the Western Interior of the United States. Dept. of the Interior, U.S. Geological Survey, 1987.