Gaya APA

VARALLO, D, V., M.Mardyks, J, S, ;, S. (2017). Leading in English : How to Confidently Communicate and Inspire Others In the International Workplace. . New Jersey: John Wily & Sons.

Gaya MLA

VARALLO, D., Vincent., M.Mardyks, Joerg, Schmitz, ;, Stephan. "Leading in English : How to Confidently Communicate and Inspire Others In the International Workplace.". New Jersey: John Wily & Sons, 2017. Text.