Gaya APA

Orr, A, D. (2007). Advanced project management: a complete guide to the key processes, models and techniques (Pbk. ed.). enk: Kogan Page.

Gaya MLA

Orr, Alan, D.. "Advanced project management: a complete guide to the key processes, models and techniques". Pbk. ed. enk: Kogan Page, 2007. E Book.