Cita APA (7th ed.)

Kilpatrick, J., Swafford, J., & Findell, B. (2001). Adding it UP: Helping children learn mathematics (1a. ed.). National Academy Press.

Cita Chicago (17th ed.)

Kilpatrick, Jeremy, Jane Swafford, i Bradford Findell. Adding It UP: Helping Children Learn Mathematics. 1a. ed. Washington, D.C: National Academy Press, 2001.

Cita MLA (9th ed.)

Kilpatrick, Jeremy, et al. Adding It UP: Helping Children Learn Mathematics. 1a. ed. National Academy Press, 2001.