Cita APA (7a ed.)

Aquila, A. J., & Marcus, B. W. (2004). Client at the core: Marketing and managing today's professional services firm. John Wiley & Sons.

Cita Chicago Style (17a ed.)

Aquila, August J., y Bruce W. Marcus. Client at the Core: Marketing and Managing Today's Professional Services Firm. Hoboken, New Jersey: John Wiley & Sons, 2004.

Cita MLA (9a ed.)

Aquila, August J., y Bruce W. Marcus. Client at the Core: Marketing and Managing Today's Professional Services Firm. John Wiley & Sons, 2004.