Massie, J. L. (1979). Essentials of management (3rd ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Massie, Joseph L. Essentials of Management. 3rd ed. Englewood Cliffs, N.J. ; New Delhi: Prentice-Hall, 1979.
Lua MLA (8ú heag.)Massie, Joseph L. Essentials of Management. 3rd ed. Prentice-Hall, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.