Hicks, H. G., & Gullett, C. R. (1981). Management (4th ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Hicks, Herbert G., agus C. Ray Gullett. Management. 4th ed. New York: McGraw-Hill, 1981.
Lua MLA (8ú heag.)Hicks, Herbert G., agus C. Ray Gullett. Management. 4th ed. McGraw-Hill, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.