Citazione Stile APA (7a Edizione)

Hart, T., & Kirby, P. (1987). Buying print cost effectively. Gower.

Citazione stile Chigago Style (17a edizione)

Hart, Tony, e Peter Kirby. Buying Print Cost Effectively. Hants, GU: Gower, 1987.

Citatione MLA (9a ed.)

Hart, Tony, e Peter Kirby. Buying Print Cost Effectively. Gower, 1987.