Gray, C. F. L. (2014). Project Management (11th ed.). McGraw Hill Education.
Lua i Stíl Chicago (17ú heag.)Gray, Clifford F; Larson. Project Management. 11th ed. New Delhi: McGraw Hill Education, 2014.
Lua MLA (9ú heag.)Gray, Clifford F; Larson. Project Management. 11th ed. McGraw Hill Education, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.