DUBRIN ANDREW J. (1985). EFFECTIVE BUSINESS PSYCHOLOGY (2ND.). RESTON PUBLISHERS.
Lua i Stíl Chicago (17ú heag.)DUBRIN ANDREW J. EFFECTIVE BUSINESS PSYCHOLOGY. 2ND. VIRGINIA: RESTON PUBLISHERS, 1985.
Lua MLA (9ú heag.)DUBRIN ANDREW J. EFFECTIVE BUSINESS PSYCHOLOGY. 2ND. RESTON PUBLISHERS, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.