Vroom, V. (1978). Work & Motivation. Wiley Eastern.
Lua i Stíl Chicago (17ú heag.)Vroom, Victor. Work & Motivation. New Delhi: Wiley Eastern, 1978.
Lua MLA (9ú heag.)Vroom, Victor. Work & Motivation. Wiley Eastern, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.