Cita APA

Kern, M. K., & Kern, M. K. (2009). Virtual reference best practices: Tailoring services to your library. Chicago: American Library Association.

Citación estilo Chicago

Kern, M. Kathleen, y M. Kathleen Kern. Virtual Reference Best Practices: Tailoring Services to Your Library. Chicago: American Library Association, 2009.

Cita MLA

Kern, M. Kathleen, y M. Kathleen Kern. Virtual Reference Best Practices: Tailoring Services to Your Library. Chicago: American Library Association, 2009.