Cita APA (7th ed.)
Gardiner, T. (2016). Teaching mathematics at secondary level. Open Book Publishers.
Cita Chicago (17th ed.)
Gardiner, Tony. Teaching Mathematics at Secondary Level. Cambridge, UK: Open Book Publishers, 2016.
Cita MLA (9th ed.)
Gardiner, Tony. Teaching Mathematics at Secondary Level. Open Book Publishers, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.