APA

Project Management Institute, . (1984). A Guide to the Project Management Body of Knowledge. USA: Project Management Institute.

Chicago

Project Management Institute, . 1984. A Guide to the Project Management Body of Knowledge. USA: Project Management Institute.

Harvard

Project Management Institute, . (1984). A Guide to the Project Management Body of Knowledge. USA: Project Management Institute.

MLA

Project Management Institute, . A Guide to the Project Management Body of Knowledge. USA: Project Management Institute. 1984.