Kliem, R. L., & Alexander Hamilton Institute. (1986). The secrets of successful project management. John Wiley and Sons.
Lua i Stíl Chicago (17ú heag.)Kliem, Ralf L., agus Alexander Hamilton Institute. The Secrets of Successful Project Management. New York: John Wiley and Sons, 1986.
Lua MLA (9ú heag.)Kliem, Ralf L., agus Alexander Hamilton Institute. The Secrets of Successful Project Management. John Wiley and Sons, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.