APA (7th ed.) Citation

Library Association, Chalcraft, A., & Walford, A. J. (1992). Walford's concise guide to reference material (2nd ed.). Library Association.

Chicago Style (17th ed.) Citation

Library Association, Anthony Chalcraft, and A. J. Walford. Walford's Concise Guide to Reference Material. 2nd ed. London: Library Association, 1992.

MLA (8th ed.) Citation

Library Association, et al. Walford's Concise Guide to Reference Material. 2nd ed. Library Association, 1992.