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ZX Interface 1 and ZX Microdrive

Sinclair Research, 1982    [computing, Eng, E7]

I. O. Angell and B. J. Jones

Advanced Graphics with the ZX Spectrum

MacMillan Press, 1983    [computing, Eng, E7]

Mark Harrison

The Sinclair Spectrum in focus

Sigma Technical Press, 1982    [computing, Eng, E7]

Dilwyn Jones

Delving Deeper into your ZX Spectrum

Commercial Colour Press, 1983    [computing, Eng, E7]

Steve Kramer   

The Spectrum Operating System

Micro Press, 1984    [computing, Eng, E7]

David Laine

Machine Code Applications for the ZX Spectrum

Sunshine Books, 1983    [computing, Eng, E7]

Ian Logan

Spectrum Microdrive Book

Melbourne House, 1983    [computing, Eng, E7]

Ian Logan

Understanding Your Spectrum

Melbourne House, 1982    [computing, Eng, E7]