Cita APA (7a ed.)

Greenberger, L. S. (2013). What to say when things get tough: Business communication strategies for winning people over when they're angry, worried and suspicious of everything you say (1st edition.). McGraw-Hill Education.

Cita Chicago Style (17a ed.)

Greenberger, Leonard S. What to Say When Things Get Tough: Business Communication Strategies for Winning People over When They're Angry, Worried and Suspicious of Everything You Say. 1st edition. New York, New York: McGraw-Hill Education, 2013.

Cita MLA (9a ed.)

Greenberger, Leonard S. What to Say When Things Get Tough: Business Communication Strategies for Winning People over When They're Angry, Worried and Suspicious of Everything You Say. 1st edition. McGraw-Hill Education, 2013.