APA (7th ed.) Citation

Haviland, R. P. (1983). Computer companion for the Sinclair/Timex computers. Tab Books.

Chicago Style (17th ed.) Citation

Haviland, Robert P. Computer Companion for the Sinclair/Timex Computers. Blue Ridge Summit, PA.: Tab Books, 1983.

MLA (9th ed.) Citation

Haviland, Robert P. Computer Companion for the Sinclair/Timex Computers. Tab Books, 1983.