Bender, David R (2003). "Special Libraries Association." In Miriam A. Drake (Ed.), Encyclopedia of Library and Information Science. 2nd ed. Vol. 4. New York: Dekker. p. 2723–2731; here: p. 2723–2724.
Murray, Tara E. (Dec 2013). “What's So Special About Special Libraries?”. Journal of Library Administration53 (4): 274–282. doi:10.1080/01930826.2013.865395.