Titus, J. A., Titus, C. A., & Larsen, D. G. (1979). TRS-80 interfacing. Howard W. Sams.
Cita Chicago (17th ed.)Titus, Jonathan A., Christopher A. Titus, i David G. Larsen. TRS-80 Interfacing. Indianápolis: Howard W. Sams, 1979.
Cita MLA (9th ed.)Titus, Jonathan A., et al. TRS-80 Interfacing. Howard W. Sams, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.