APA (7e ed.) Bronvermelding

Gray, C. F. L. (2014). Project Management (6th ed.). McGraw Hill Education.

Chicago (17e ed.) Bronvermelding

Gray, Clifford F.; Larson. Project Management. 6th ed. New Delhi: McGraw Hill Education, 2014.

MLA (9e ed.) Bronvermelding

Gray, Clifford F.; Larson. Project Management. 6th ed. McGraw Hill Education, 2014.