Cita APA (7th ed.)

Hirko, B., & Ross, M. B. (2004). Virtual reference training: The complete guide to providing anytime, anywhere answers. American Library Association.

Cita Chicago (17th ed.)

Hirko, Buff, i Mary Bucher Ross. Virtual Reference Training: The Complete Guide to Providing Anytime, Anywhere Answers. Chicago: American Library Association, 2004.

Cita MLA (9th ed.)

Hirko, Buff, i Mary Bucher Ross. Virtual Reference Training: The Complete Guide to Providing Anytime, Anywhere Answers. American Library Association, 2004.