APA (7th ed.) Citation

Library Association & Walford, A. J. (1975). Guide to reference material. Library Association.

Chicago Style (17th ed.) Citation

Library Association and A. J. Walford. Guide to Reference Material. London: Library Association, 1975.

MLA (9th ed.) Citation

Library Association and A. J. Walford. Guide to Reference Material. Library Association, 1975.