APA (7th ed.) Citation

Maunder, B. (1981). The ZX81 companion. Creative Computing Press.

Chicago Style (17th ed.) Citation

Maunder, Bob. The ZX81 Companion. Morris Plains, N.J.: Creative Computing Press, 1981.

MLA (9th ed.) Citation

Maunder, Bob. The ZX81 Companion. Creative Computing Press, 1981.

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