Citazione Stile APA (7a Edizione)

Powell, M. K., Smith, D., & Newton, D. (1979). Communicating information (4. impression.). Schofield & Sims.

Citazione stile Chigago Style (17a edizione)

Powell, Melvyn K., David Smith, e Derek Newton. Communicating Information. 4. impression. Huddersfield: Schofield & Sims, 1979.

Citatione MLA (9a ed.)

Powell, Melvyn K., et al. Communicating Information. 4. impression. Schofield & Sims, 1979.