American National Standard. (2004). Project Management Body of Knowledge. American National.
Citazione stile Chigago Style (17a edizione)American National Standard. Project Management Body of Knowledge. American: American National, 2004.
Citatione MLA (9a ed.)American National Standard. Project Management Body of Knowledge. American National, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.