APA Style

Institute, P, M. (2021). A Guide to the Project Management Body of Knowledge (PMBOK (R) Guide) (PMBOK® Guide) (7th ed.). : Project Management Institute.

MLA Style

Institute, Project, Management. "A Guide to the Project Management Body of Knowledge (PMBOK (R) Guide) (PMBOK® Guide)". 7th ed. : Project Management Institute, 2021. Text.