ebrary, Inc, Bowler, M., & MacMillan, M. (2010). Reference services review. Emerald.
Cita Chicago (17th ed.)ebrary, Inc, Meagan Bowler, i Margy MacMillan. Reference Services Review. [Bingley, UK]: Emerald, 2010.
Cita MLA (9th ed.)ebrary, Inc, et al. Reference Services Review. Emerald, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.