Campbell, P. (1994). Permanent magnet materials and their application. Cambridge University Press.
Cita Chicago (17th ed.)Campbell, Peter. Permanent Magnet Materials and Their Application. Cambridge [England]: Cambridge University Press, 1994.
Cita MLA (9th ed.)Campbell, Peter. Permanent Magnet Materials and Their Application. Cambridge University Press, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.