Cita APA (7a ed.)

Clark, R. P. (2008). Writing tools: 50 essential strategies for every writer (1st paperback ed.). Little, Brown and Company.

Cita Chicago Style (17a ed.)

Clark, Roy Peter. Writing Tools: 50 Essential Strategies for Every Writer. 1st paperback ed. New York [etc.]: Little, Brown and Company, 2008.

Cita MLA (9a ed.)

Clark, Roy Peter. Writing Tools: 50 Essential Strategies for Every Writer. 1st paperback ed. Little, Brown and Company, 2008.