Cita APA (7a ed.)

Spreadbury, F. G. (1949). Permanent Magnets (1a. ed.). Sir Isaac Pitman & Sons.

Cita Chicago Style (17a ed.)

Spreadbury, F. G. Permanent Magnets. 1a. ed. London: Sir Isaac Pitman & Sons, 1949.

Cita MLA (8a ed.)

Spreadbury, F. G. Permanent Magnets. 1a. ed. Sir Isaac Pitman & Sons, 1949.