APA (7th ed.) Citation

U.S. Coast and Geodetic Survey & Hazard, D. L. (1920). Alaska magnetic tables and magnetic charts for 1920. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

U.S. Coast and Geodetic Survey and Daniel L. Hazard. Alaska Magnetic Tables and Magnetic Charts for 1920. [Washington?]: U.S. Government Printing Office, 1920.

MLA (9th ed.) Citation

U.S. Coast and Geodetic Survey and Daniel L. Hazard. Alaska Magnetic Tables and Magnetic Charts for 1920. U.S. Government Printing Office, 1920.