Kelman, P. (1983). Computers in teaching mathematics. Addison-Wersley.
Cita Chicago (17th ed.)Kelman, Peter. Computers in Teaching Mathematics. Reading, Mass: Addison-Wersley, 1983.
Cita MLA (9th ed.)Kelman, Peter. Computers in Teaching Mathematics. Addison-Wersley, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.