APA-referens (7:e uppl.)

WATSON, G. A. (1980). Approximation theory and numerical methods. John Wiley.

Chicago-referens (17:e uppl.)

WATSON, G. Alistair. Approximation Theory and Numerical Methods. New York: John Wiley, 1980.

MLA-referens (9:e uppl.)

WATSON, G. Alistair. Approximation Theory and Numerical Methods. John Wiley, 1980.