Ashford, N. A. (1976). Crisis in the workplace: Occupational disease and injury : a report to the Ford Foundation. MIT Press.
Lua i Stíl Chicago (17ú heag.)Ashford, Nicholas Askounes. Crisis in the Workplace: Occupational Disease and Injury : A Report to the Ford Foundation. Cambridge, Mass.: MIT Press, 1976.
Lua MLA (8ú heag.)Ashford, Nicholas Askounes. Crisis in the Workplace: Occupational Disease and Injury : A Report to the Ford Foundation. MIT Press, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.