Cita APA (7a ed.)
Bielskas, A., & Dreyer, K. M. (2012). IM and SMS reference services for libraries. ALA TechSource, an imprint of the American Library Association.
Cita Chicago Style (17a ed.)
Bielskas, Amanda, y Kathleen M. Dreyer. IM and SMS Reference Services for Libraries. Chicago: ALA TechSource, an imprint of the American Library Association, 2012.
Cita MLA (9a ed.)
Bielskas, Amanda, y Kathleen M. Dreyer. IM and SMS Reference Services for Libraries. ALA TechSource, an imprint of the American Library Association, 2012.
Precaución: Estas citas no son 100% exactas.