Hobbs,Peter. (2015). Project Management. Penguin.
Lua i Stíl Chicago (17ú heag.)Hobbs,Peter. Project Management. UK: Penguin, 2015.
Lua MLA (9ú heag.)Hobbs,Peter. Project Management. Penguin, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.