Gardiner, T. (2016). Teaching mathematics at secondary level. Open Book Publishers.
Citazione stile Chigago Style (17a edizione)Gardiner, Tony. Teaching Mathematics at Secondary Level. Cambridge, UK: Open Book Publishers, 2016.
Citatione MLA (9a ed.)Gardiner, Tony. Teaching Mathematics at Secondary Level. Open Book Publishers, 2016.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.