APA-viite (7. p.)

Townsend, C. (1998). Introduction to Turbo Prolog. BPB Publications.

Chicago-viite (17. p.)

Townsend, Carl. Introduction to Turbo Prolog. New Delhi: BPB Publications, 1998.

MLA-viite (9. p.)

Townsend, Carl. Introduction to Turbo Prolog. BPB Publications, 1998.