Cita APA (7a ed.)

Bielskas, A., & Dreyer, K. M. (2012). IM and SMS reference services for libraries. ALA TechSource.

Cita Chicago Style (17a ed.)

Bielskas, Amanda, y Kathleen M. Dreyer. IM and SMS Reference Services for Libraries. Chicago: ALA TechSource, 2012.

Cita MLA (9a ed.)

Bielskas, Amanda, y Kathleen M. Dreyer. IM and SMS Reference Services for Libraries. ALA TechSource, 2012.