APA (7th ed.) Citation

Grant, J., Grant, C., & Paredes, M. (1987). ZX Spectrum: Manual del programador. Alianza.

Chicago Style (17th ed.) Citation

Grant, John, Catherine Grant, and Miguel Paredes. ZX Spectrum: Manual Del Programador. Madrid: Alianza, 1987.

MLA (9th ed.) Citation

Grant, John, et al. ZX Spectrum: Manual Del Programador. Alianza, 1987.