APA (7th ed.) Citation

Doores, J., Reiblein, A. R., & Vadera, S. (1987). Prolog: Programming for tomorrow. Sigma Press.

Chicago Style (17th ed.) Citation

Doores, J., A. R. Reiblein, and S. Vadera. Prolog: Programming for Tomorrow. Williamslow (UK): Sigma Press, 1987.

MLA (9th ed.) Citation

Doores, J., et al. Prolog: Programming for Tomorrow. Sigma Press, 1987.