APA (7th ed.) Citation

Hummel, R. L. (1992). PC magazine programmer's technical reference: The processor and coprocessor. Ziff-Davis.

Chicago Style (17th ed.) Citation

Hummel, Robert L. PC Magazine Programmer's Technical Reference: The Processor and Coprocessor. Emeryville: Ziff-Davis, 1992.

MLA (9th ed.) Citation

Hummel, Robert L. PC Magazine Programmer's Technical Reference: The Processor and Coprocessor. Ziff-Davis, 1992.