APA (7th ed.) Citation

Online Conferences Ltd. (1979). Introduction to microcomputers. Online Conferences.

Chicago Style (17th ed.) Citation

Online Conferences Ltd. Introduction to Microcomputers. Uxbridge, England: Online Conferences, 1979.

MLA (9th ed.) Citation

Online Conferences Ltd. Introduction to Microcomputers. Online Conferences, 1979.

Warning: These citations may not always be 100% accurate.