Posner, M. J. (1982). Executive essentials: The one guide to what every rising business person should know. Avon Books.
Lua i Stíl Chicago (17ú heag.)Posner, Mitchell J. Executive Essentials: The One Guide to What Every Rising Business Person Should Know. N.Y: Avon Books, 1982.
Lua MLA (9ú heag.)Posner, Mitchell J. Executive Essentials: The One Guide to What Every Rising Business Person Should Know. Avon Books, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.