Παραπομπή σε μορφή APA (7η εκδ.)

Zimmermann, W., & Cunningham, S. (1991). Visualization in teaching and learning mathematics. The Mathematical Association of America.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Zimmermann, Walter, και Steve Cunningham. Visualization in Teaching and Learning Mathematics. Washington, D.C: The Mathematical Association of America, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

Zimmermann, Walter, και Steve Cunningham. Visualization in Teaching and Learning Mathematics. The Mathematical Association of America, 1991.