APA (7th ed.) Citation

Nichols, E. A., Nichols, J. C., & Rony, P. R. (1979). Z-80 microprocessor: Programming and interfacing. Howard W. Sams.

Chicago Style (17th ed.) Citation

Nichols, Elizabeth A., Joseph C. Nichols, and Peter R. Rony. Z-80 Microprocessor: Programming and Interfacing. Indianápolis: Howard W. Sams, 1979.

MLA (9th ed.) Citation

Nichols, Elizabeth A., et al. Z-80 Microprocessor: Programming and Interfacing. Howard W. Sams, 1979.