Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Doores, J., A. R. Reiblein, i S. Vandera. Prolog: Programming for Tomorrow. Wilmslow, Cheshire: Sigma Press, 1987.

Cita MLA (8th ed.)

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