APA
Cottrell D., . (2013). Tuesday morning coaching : eight simple truths to boost your career and your life. New York: McGraw-Hill.
Chicago
Cottrell David, . 2013. Tuesday morning coaching : eight simple truths to boost your career and your life. New York: McGraw-Hill.
Harvard
Cottrell D., . (2013). Tuesday morning coaching : eight simple truths to boost your career and your life. New York: McGraw-Hill.
MLA
Cottrell David, . Tuesday morning coaching : eight simple truths to boost your career and your life. New York: McGraw-Hill. 2013.