Cita APA (7a ed.)

U.S. Coast and Geodetic Survey, Heck, N. H., Wood, H. O., & Allen, M. W. (1938). Earthquake history of the United States. U.S. Govt. Print. Off..

Cita Chicago Style (17a ed.)

U.S. Coast and Geodetic Survey, N. H. Heck, Harry O. Wood, y Maxwell W. Allen. Earthquake History of the United States. Washington: U.S. Govt. Print. Off., 1938.

Cita MLA (8a ed.)

U.S. Coast and Geodetic Survey, et al. Earthquake History of the United States. U.S. Govt. Print. Off., 1938.

Precaución: Estas citas no son 100% exactas.