RIEL, V. C. B. M., & RIEL, V. C. B. M. (1995). Principles Of Corporate Communication. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)RIEL, Van Cees B M., agus Van Cees B M. RIEL. Principles Of Corporate Communication. Prentice-Hall, 1995.
Lua MLA (8ú heag.)RIEL, Van Cees B M., agus Van Cees B M. RIEL. Principles Of Corporate Communication. Prentice-Hall, 1995.
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