William B. Werther, J. Human Resources and Personnel Management. McGraw Hill.
Lua i Stíl Chicago (17ú heag.)William B. Werther, Jr. Human Resources and Personnel Management. McGraw Hill.
Lua MLA (8ú heag.)William B. Werther, Jr. Human Resources and Personnel Management. McGraw Hill.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.