Tuttle, R. E., & Brown, C. A. (1956). Writing useful reports: Principles and applications. Appleton-Century-Crofts.
Lua i Stíl Chicago (17ú heag.)Tuttle, Robert Eugene, agus Cleo Albert Brown. Writing Useful Reports: Principles and Applications. New York: Appleton-Century-Crofts, 1956.
Lua MLA (9ú heag.)Tuttle, Robert Eugene, agus Cleo Albert Brown. Writing Useful Reports: Principles and Applications. Appleton-Century-Crofts, 1956.
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