APA (7th ed.) Citation

Westjohn, D. B., & Weaver, T. L. (1996). Hydrogeologic framework of Pennsylvanian and Late Mississippian rocks in the central lower peninsula of Michigan. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Westjohn, D. B., and T. L. Weaver. Hydrogeologic Framework of Pennsylvanian and Late Mississippian Rocks in the Central Lower Peninsula of Michigan. Lansing, Mich.: U.S. Dept. of the Interior, U.S. Geological Survey, 1996.

MLA (9th ed.) Citation

Westjohn, D. B., and T. L. Weaver. Hydrogeologic Framework of Pennsylvanian and Late Mississippian Rocks in the Central Lower Peninsula of Michigan. U.S. Dept. of the Interior, U.S. Geological Survey, 1996.