APA (7th ed.) Citation

Geological Survey (U.S.) & Cobban, W. A. (2006). A USGS zonal table for the Upper Cretaceous middle Cenomanian-Maastrichtian of the Western Interior of the United States based on ammonites, inoceramids, and radiometric ages (Version 1.0.). U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and William A. Cobban. A USGS Zonal Table for the Upper Cretaceous Middle Cenomanian-Maastrichtian of the Western Interior of the United States Based on Ammonites, Inoceramids, and Radiometric Ages. Version 1.0. Reston, Va.: U.S. Geological Survey, 2006.

MLA (9th ed.) Citation

Geological Survey (U.S.) and William A. Cobban. A USGS Zonal Table for the Upper Cretaceous Middle Cenomanian-Maastrichtian of the Western Interior of the United States Based on Ammonites, Inoceramids, and Radiometric Ages. Version 1.0. U.S. Geological Survey, 2006.