Du Bray, E A. (2006). Petrology of the Crazy Mountains dike swarm and geochronology of associated sills, south-central Montana. Reston, Va: US Dept. of the Interior, US Geological Survey.
ISBD CitationPetrology of the Crazy Mountains dike swarm and geochronology of associated sills, south-central Montana / by Edward A. du Bray; Stephen S. Harlan and Anna B. Wilson . — Reston, Va : US Dept. of the Interior, US Geological Survey, 2006. — III, 21 S.; graph. Darst., Kt; 28 cm. — (Professional paper / U.S. Department of the Interior, U.S. Geological Survey ; 1715). — ISBN 9791411306584, 1411306589, 9781411306585
MLA CitationDu Bray, Edward A. Petrology of the Crazy Mountains Dike Swarm and Geochronology of Associated Sills, South-central Montana.Reston, Va: US Dept. of the Interior, US Geological Survey, 2006.