APA (7th ed.) Citation

Fri, T. F. (1978). Beginner ́s guide to computers: Beginner ́s guide to computers. Butterworths.

Chicago Style (17th ed.) Citation

Fri, Thomas Frederick. Beginner ́s Guide to Computers: Beginner ́s Guide to Computers. London: Butterworths, 1978.

MLA (9th ed.) Citation

Fri, Thomas Frederick. Beginner ́s Guide to Computers: Beginner ́s Guide to Computers. Butterworths, 1978.