Du Bray, E. A., Harlan, S. S., & Wilson, A. B. (2006). Petrology of the Crazy Mountains dike swarm and geochronology of associated sills, south-central Montana. U.S. Geological Survey.

Du Bray, Edward A., Stephen S. Harlan, and Anna Burack Wilson. Petrology of the Crazy Mountains Dike Swarm and Geochronology of Associated Sills, South-central Montana. [Reston, Va.]: U.S. Geological Survey, 2006.

Du Bray, Edward A., et al. Petrology of the Crazy Mountains Dike Swarm and Geochronology of Associated Sills, South-central Montana. U.S. Geological Survey, 2006.