(1923). Instructions for the compensation of the magnetic compass / by N. H. Heck, chief, Division of Terrestrial Magnetism. With the cooperation of W. E. Parker, chief, Division of Hydrography and Topography.
Chicago Style (17th ed.) CitationInstructions for the Compensation of the Magnetic Compass / by N. H. Heck, Chief, Division of Terrestrial Magnetism. With the Cooperation of W. E. Parker, Chief, Division of Hydrography and Topography. 1923.
MLA (9th ed.) CitationInstructions for the Compensation of the Magnetic Compass / by N. H. Heck, Chief, Division of Terrestrial Magnetism. With the Cooperation of W. E. Parker, Chief, Division of Hydrography and Topography. 1923.
Warning: These citations may not always be 100% accurate.