Παραπομπή σε μορφή APA (7η εκδ.)

Coelho, H., & Cotta, J. C. (1988). Prolog by example: How to learn, teach and use it. Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Coelho, Helder, και Jose Carlos Cotta. Prolog by Example: How to Learn, Teach and Use It. Berlin: Springer, 1988.

Παραπομπή σε μορφή MLA (9th εκδ.)

Coelho, Helder, και Jose Carlos Cotta. Prolog by Example: How to Learn, Teach and Use It. Springer, 1988.