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A practical manual of the compass;
a short treatise on the errors of the magnetic compass, with the methods employed in the U.S. navy for compensating the deviations, and a description of service instruments, including the gyrocompass;
prepared with the approval of the Bureau of navigation, Navy department.

APA Citation

Laning, H., United States. Bureau of Naval Personnel. (1921). A practical manual of the compass: a short treatise on the errors of the magnetic compass, with the methods employed in the U.S. navy for compensating the deviations, and a description of service instruments, including the gyrocompass. Annapolis, Md.: The United States naval institute.

MLA Citation

Laning, Harris, 1873-, and United States. Bureau of Naval Personnel. A Practical Manual of the Compass: a Short Treatise On the Errors of the Magnetic Compass, With the Methods Employed In the U.S. Navy for Compensating the Deviations, And a Description of Service Instruments, Including the Gyrocompass. Annapolis, Md.: The United States naval institute, 1921.

Warning: These citations may not always be complete (especially for serials).