Παραπομπή σε μορφή APA (7η εκδ.)

Heymann, H. W. (2003). Why teach mathematics?: A focus on general education. Kluwer Academic Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Heymann, Hans Werner. Why Teach Mathematics?: A Focus on General Education. Dordrecht; Boston; London: Kluwer Academic Publishers, 2003.

Παραπομπή σε μορφή MLA (9th εκδ.)

Heymann, Hans Werner. Why Teach Mathematics?: A Focus on General Education. Kluwer Academic Publishers, 2003.