APA (7th ed.) Citation

(1990). A Directory of Library and Information Retrieval for Microcomputers: 4th Edition. Gower Publishing Co. Ltd..

Chicago Style (17th ed.) Citation

A Directory of Library and Information Retrieval for Microcomputers: 4th Edition. England: Gower Publishing Co. Ltd., 1990.

MLA (9th ed.) Citation

A Directory of Library and Information Retrieval for Microcomputers: 4th Edition. Gower Publishing Co. Ltd., 1990.