Kreitner, R. (1983). Management. Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)Kreitner, Robert. Management. Boston: Houghton Mifflin, 1983.
Lua MLA (9ú heag.)Kreitner, Robert. Management. Houghton Mifflin, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.