Cita APA (7a ed.)

Covington, M. A., Nute, D., & Vellino, A. (1988). Prolog programming in depth. Scott, Foresman and Company.

Cita Chicago Style (17a ed.)

Covington, Michael A., Donald Nute, y André Vellino. Prolog Programming in Depth. Glenview, Illinois [etc.]: Scott, Foresman and Company, 1988.

Cita MLA (9a ed.)

Covington, Michael A., et al. Prolog Programming in Depth. Scott, Foresman and Company, 1988.