Cita APA (7th ed.)

Posner, B. Z., & Posner, K. (2006). The encouraging the heart workbook. Jossey-Bass.

Cita Chicago (17th ed.)

Posner, Barry Z., i Kouzes Posner. The Encouraging the Heart Workbook. San Francisco: Jossey-Bass, 2006.

Cita MLA (9th ed.)

Posner, Barry Z., i Kouzes Posner. The Encouraging the Heart Workbook. Jossey-Bass, 2006.