APA

Dewhirst J., Tennison R., . (1983). A Child's Guide to the ZX Spectrum. Cambridge: Cambridge University Press.

Chicago

Dewhirst Jhon, Tennison Rosemary, . 1983. A Child's Guide to the ZX Spectrum. Cambridge: Cambridge University Press.

Harvard

Dewhirst J., Tennison R., . (1983). A Child's Guide to the ZX Spectrum. Cambridge: Cambridge University Press.

MLA

Dewhirst Jhon, Tennison Rosemary, . A Child's Guide to the ZX Spectrum. Cambridge: Cambridge University Press. 1983.