APA (7th ed.) Citation

Parker, R. B. (2009). The professional. G.P. Putnam's Sons.

Chicago Style (17th ed.) Citation

Parker, Robert B. The Professional. New York: G.P. Putnam's Sons, 2009.

MLA (9th ed.) Citation

Parker, Robert B. The Professional. G.P. Putnam's Sons, 2009.