APA (7th ed.) Citation

Powell, G. (1990). My friend Arnold's book of personal computers: A complete guide to personal computing. Allen & Unwin.

Chicago Style (17th ed.) Citation

Powell, Gareth. My Friend Arnold's Book of Personal Computers: A Complete Guide to Personal Computing. North Sydney: Allen & Unwin, 1990.

MLA (8th ed.) Citation

Powell, Gareth. My Friend Arnold's Book of Personal Computers: A Complete Guide to Personal Computing. Allen & Unwin, 1990.