Cita APA

Follansbee, R., & Follansbee, R. (1994). A History of the water resources branch, U.S. geological survey. Denver, Colo.: U.S. Government Printing Office.

Citación estilo Chicago

Follansbee, Robert, y Robert Follansbee. A History of the Water Resources Branch, U.S. Geological Survey. Denver, Colo.: U.S. Government Printing Office, 1994.

Cita MLA

Follansbee, Robert, y Robert Follansbee. A History of the Water Resources Branch, U.S. Geological Survey. Denver, Colo.: U.S. Government Printing Office, 1994.