APA (7th ed.) Citation

Dyer, H., & Gunson, A. (1988). A directory of library and information retrieval software for microcomputers (3. ed.). Gower.

Chicago Style (17th ed.) Citation

Dyer, Hilary, and Alison Gunson. A Directory of Library and Information Retrieval Software for Microcomputers. 3. ed. Aldershot: Gower, 1988.

MLA (9th ed.) Citation

Dyer, Hilary, and Alison Gunson. A Directory of Library and Information Retrieval Software for Microcomputers. 3. ed. Gower, 1988.