Humble, J. Management by objectives.
Lua i Stíl Chicago (17ú heag.)Humble, John. Management by Objectives.
Lua MLA (9ú heag.)Humble, John. Management by Objectives.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)