APA (7th ed.) Citation

ScienceDirect (Online service), Ferguson, J. D., & Williams, P. (1983). Programming the BBC Micro. Newnes Technical Books.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), John D. Ferguson, and Peter Williams. Programming the BBC Micro. Sevenoaks, Kent: Newnes Technical Books, 1983.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Programming the BBC Micro. Newnes Technical Books, 1983.