Effective library signage : a SPEC kit
MLA
Ragsdale, Kate W, Donald J Kenney, and Laura Rounds. Effective Library Signage: a Spec Kit. Washington, DC: Association of Research Libraries, Office of Management Services, 1995
APA, 7th edition
Ragsdale, K. W, Kenney, D. J, & Rounds, L. (1995). Effective library signage: a SPEC kit. Washington, DC: Association of Research Libraries, Office of Management Services
Chicago, 17th edition
Ragsdale, Kate W., Donald J Kenney, and Laura Rounds. Effective library signage: a SPEC kit. Washington, DC: Association of Research Libraries, Office of Management Services, 1995