Cole, K. (2002). Crystal clear communication: Skills for understanding and being understood. Snergy Book International.
Chicago Style (17th ed.) CitationCole, Kris. Crystal Clear Communication: Skills for Understanding and Being Understood. Kuala Lumpur: Snergy Book International, 2002.
MLA (9th ed.) CitationCole, Kris. Crystal Clear Communication: Skills for Understanding and Being Understood. Snergy Book International, 2002.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.