Mastering machine code on your ZX81
By: by Toni Baker ; with illustrations by Cathy Lowe.
Edition: 2nd ed.
Publisher: Interface
Published: 1983
Place of publication: London
Language: eng
Number of pages: 186
Subjects: Sinclair ZX80 (Computer) -- Programming.; Sinclair ZX81 (Computer) -- Programming.
Notes: Previous ed., Aug 1981.