APA (7th ed.) Citation

Gray, T., & Billson, C. (1984). Ideas for micro users. Ladybird Books.

Chicago Style (17th ed.) Citation

Gray, Tony, and Carl Billson. Ideas for Micro Users. Loughborough: Ladybird Books, 1984.

MLA (9th ed.) Citation

Gray, Tony, and Carl Billson. Ideas for Micro Users. Ladybird Books, 1984.