Gaya APA

Hogan, T. (1984). The CP/M user guide: for all 8-bit CP/M computers (ed.3). California: Mc Graw Hill.

Gaya MLA

Hogan, Thom. "The CP/M user guide: for all 8-bit CP/M computers". ed.3 California: Mc Graw Hill, 1984. Text.