BARTOL, K. M. (1991). Management Kathryn M. Bartol, David C. Martin. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)BARTOL, Kathryn M. Management Kathryn M. Bartol, David C. Martin. McGraw-Hill, 1991.
Lua MLA (8ú heag.)BARTOL, Kathryn M. Management Kathryn M. Bartol, David C. Martin. McGraw-Hill, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.