Clark, R. P. (2006). Writing tools: 50 essential strategies for every writer. Little, Brown, and Co..
Cita Chicago Style (17a ed.)Clark, Roy Peter. Writing Tools: 50 Essential Strategies for Every Writer. New York: Little, Brown, and Co., 2006.
Cita MLA (8a ed.)Clark, Roy Peter. Writing Tools: 50 Essential Strategies for Every Writer. Little, Brown, and Co., 2006.
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