McCORMICK, E. J. (1979). Industrial Psychology Ernest J. Mccormick Dan Joseph Tiffin. Prentice Hall of India.
Lua i Stíl Chicago (17ú heag.)McCORMICK, Ernest J. Industrial Psychology Ernest J. Mccormick Dan Joseph Tiffin. Prentice Hall of India, 1979.
Lua MLA (8ú heag.)McCORMICK, Ernest J. Industrial Psychology Ernest J. Mccormick Dan Joseph Tiffin. Prentice Hall of India, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.