Παραπομπή APA

Hergert, D. (1983). Your Timex Sinclair 1000 and ZX81. Sybex.

Παραπομπή Chicago Style

Hergert, Douglas. Your Timex Sinclair 1000 and ZX81. Berkeley: Sybex, 1983.

Παραπομπή MLA

Hergert, Douglas. Your Timex Sinclair 1000 and ZX81. Sybex, 1983.