Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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