APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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