APA Style

institute, P, M. (2008). A GUIDE TO THE PROJECT MANAGEMENT BODY OF KNOWLEDGE (PMBOK® Guide) (4th ed). USA: Project Management Institute, Inc.

MLA Style

institute, Project, Management. "A GUIDE TO THE PROJECT MANAGEMENT BODY OF KNOWLEDGE (PMBOK® Guide)". 4th ed USA: Project Management Institute, Inc, 2008. Electronic Resource.