APA (7th ed.) Citation

Ennals, J. R. (1984). Beginning micro-PROLOG (2nd rev. ed.). Harper & Row Pub.

Chicago Style (17th ed.) Citation

Ennals, J. R. Beginning Micro-PROLOG. 2nd rev. ed. New York: Harper & Row Pub, 1984.

MLA (9th ed.) Citation

Ennals, J. R. Beginning Micro-PROLOG. 2nd rev. ed. Harper & Row Pub, 1984.