Cita APA (7a ed.)

Knapp, D. G. (1963). Position parameters in the rise of geomagnetic cartography, specifically dip versus latitude. Department of Commerce. Coast and Geodetic Survey.

Cita Chicago Style (17a ed.)

Knapp, David G. Position Parameters in the Rise of Geomagnetic Cartography, Specifically Dip Versus Latitude. Washington: Department of Commerce. Coast and Geodetic Survey, 1963.

Cita MLA (9a ed.)

Knapp, David G. Position Parameters in the Rise of Geomagnetic Cartography, Specifically Dip Versus Latitude. Department of Commerce. Coast and Geodetic Survey, 1963.