Citazione Stile APA (7a Edizione)
ebrary, Inc, Kilpatrick, J., Swafford, J., & Findell, B. (2001). Adding it up: Helping children learn mathematics. National Academy Press.
Citazione stile Chigago Style (17a edizione)
ebrary, Inc, Jeremy Kilpatrick, Jane Swafford, e Bradford Findell. Adding It Up: Helping Children Learn Mathematics. Washington, DC: National Academy Press, 2001.
Citatione MLA (9a ed.)
ebrary, Inc, et al. Adding It Up: Helping Children Learn Mathematics. National Academy Press, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.