APA (7th ed.) Citation

Prochnow, D. (1987). The GEM operating system handbook. Tab Books.

Chicago Style (17th ed.) Citation

Prochnow, Dave. The GEM Operating System Handbook. Blue Ridge Summit, PA: Tab Books, 1987.

MLA (9th ed.) Citation

Prochnow, Dave. The GEM Operating System Handbook. Tab Books, 1987.

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