Evans, G. E., Intner, S. S., & Weihs, J. (2011). Introduction to technical services (8th ed.). Libraries Unlimited.

Evans, G. Edward, Sheila S. Intner, and Jean Weihs. Introduction to Technical Services. 8th ed. Santa Barbara, Calif: Libraries Unlimited, 2011.

Evans, G. Edward, et al. Introduction to Technical Services. 8th ed. Libraries Unlimited, 2011.