Cita APA (7th ed.)
Patterson, G. W. (1907). Magnetic lines of force.
Cita Chicago (17th ed.)
Patterson, George W. Magnetic Lines of Force. Ann Arbor, 1907.
Cita MLA (9th ed.)
Patterson, George W. Magnetic Lines of Force. 1907.
Atenció: Aquestes cites poden no estar 100% correctes.