Morrison, C., & Hughes, P. (1982). Professional engineering practice: Ethical aspects. McGraw-Hill Ryerson.
Lua i Stíl Chicago (17ú heag.)Morrison, Carson, agus Philip Hughes. Professional Engineering Practice: Ethical Aspects. Toronto: McGraw-Hill Ryerson, 1982.
Lua MLA (9ú heag.)Morrison, Carson, agus Philip Hughes. Professional Engineering Practice: Ethical Aspects. McGraw-Hill Ryerson, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.