APA

(2013). A guide to the project management body of knowledge. Atlanta: Project Management Institute, Inc.

Chicago

2013. A guide to the project management body of knowledge. Atlanta: Project Management Institute, Inc.

Harvard

(2013). A guide to the project management body of knowledge. Atlanta: Project Management Institute, Inc.

MLA

A guide to the project management body of knowledge. Atlanta: Project Management Institute, Inc. 2013.