APA-referens (7:e uppl.)

Kelman, P. (1983). Computers in teaching mathematics. Addison-Wesley Pub. Co.

Chicago-referens (17:e uppl.)

Kelman, Peter. Computers in Teaching Mathematics. Reading, Mass: Addison-Wesley Pub. Co, 1983.

MLA-referens (9:e uppl.)

Kelman, Peter. Computers in Teaching Mathematics. Addison-Wesley Pub. Co, 1983.