Cita APA (7a ed.)

Sell, P. S. (1985). Expert systems: A practical introduction. MacMillan.

Cita Chicago Style (17a ed.)

Sell, Peter S. Expert Systems: A Practical Introduction. Basingstoke [etc.]: MacMillan, 1985.

Cita MLA (9a ed.)

Sell, Peter S. Expert Systems: A Practical Introduction. MacMillan, 1985.