Cita APA (7th ed.)
Ledermann, W. (1960). Complex Number (1a.ed.). Routeledge and Kegan Paul.
Cita Chicago (17th ed.)
Ledermann, Walter. Complex Number. 1a.ed. Londres: Routeledge and Kegan Paul, 1960.
Cita MLA (9th ed.)
Ledermann, Walter. Complex Number. 1a.ed. Routeledge and Kegan Paul, 1960.
Atenció: Aquestes cites poden no estar 100% correctes.