APA (7th ed.) Citation

Baker, T. (1982). Mastering machine code on your ZX81. Reston Pub. Co..

Chicago Style (17th ed.) Citation

Baker, Toni. Mastering Machine Code on Your ZX81. Reston, Va.: Reston Pub. Co., 1982.

MLA (9th ed.) Citation

Baker, Toni. Mastering Machine Code on Your ZX81. Reston Pub. Co., 1982.

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