Gaya APA

Stewart, D, J., Stewart, J, P. (2009). Lead Now! : A Personal Leadership Coaching Guide For Results-Driven Leaders . United States of America: Leadership Excellence.

Gaya MLA

Stewart, Daniel, J.., Stewart, John, Parker. "Lead Now! : A Personal Leadership Coaching Guide For Results-Driven Leaders". United States of America: Leadership Excellence, 2009. FIC.