Cita APA (7a ed.)

Berry, L. L. (1999). Discovering the soul of service: : the nine drivers of sustainable business success. Free Press.

Cita Chicago Style (17a ed.)

Berry, Leonard L. Discovering the Soul of Service: : The Nine Drivers of Sustainable Business Success. New York: Free Press, 1999.

Cita MLA (9a ed.)

Berry, Leonard L. Discovering the Soul of Service: : The Nine Drivers of Sustainable Business Success. Free Press, 1999.