Παραπομπή APA

Covington, M., Nute, D., & Vellino, A. (1997). Prolog programming in depth. Upper Saddle River: Prentice Hall.

Παραπομπή Chicago Style

Covington, Michael, Donald Nute, and Andre Vellino. Prolog Programming in Depth. Upper Saddle River: Prentice Hall, 1997.

Παραπομπή MLA

Covington, Michael, Donald Nute, and Andre Vellino. Prolog Programming in Depth. Upper Saddle River: Prentice Hall, 1997.

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