Cita APA (7th ed.)

Clegg, R., & Thompson, W. A. (1989). Modern sports officiating: A practical guide (4th ed.). W.C. Brown.

Cita Chicago (17th ed.)

Clegg, Richard, i William A. Thompson. Modern Sports Officiating: A Practical Guide. 4th ed. Dubuque, Iowa: W.C. Brown, 1989.

Cita MLA (9th ed.)

Clegg, Richard, i William A. Thompson. Modern Sports Officiating: A Practical Guide. 4th ed. W.C. Brown, 1989.