Rue, L. W., & Byars, L. L. (1999). Supervisory: Key link to productivity. Irwin McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Rue, Leslie W., agus Lloyd L. Byars. Supervisory: Key Link to Productivity. Boston, Ill: Irwin McGraw-Hill, 1999.
Lua MLA (9ú heag.)Rue, Leslie W., agus Lloyd L. Byars. Supervisory: Key Link to Productivity. Irwin McGraw-Hill, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.