Cita APA (7a ed.)

Watkins, R. P. (1974). Computer problem solving. John Wiley & Sons Australia.

Cita Chicago Style (17a ed.)

Watkins, R. P. Computer Problem Solving. Sydney [etc.]: John Wiley & Sons Australia, 1974.

Cita MLA (9a ed.)

Watkins, R. P. Computer Problem Solving. John Wiley & Sons Australia, 1974.