APA-viite (7. p.)

Townsend, C. (1988). Introduction to Turbo prolog. Sybex ; BPB publications.

Chicago-viite (17. p.)

Townsend, Carl. Introduction to Turbo Prolog. Berkeley : New Delhi: Sybex ; BPB publications, 1988.

MLA-viite (8. p.)

Townsend, Carl. Introduction to Turbo Prolog. Sybex ; BPB publications, 1988.