Παραπομπή σε μορφή APA (7η εκδ.)

Walker, S. (2006). Sense and nonsense about crime and drugs: A policy guide (6th ed.). Thomson/Wadsworth.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Walker, Samuel. Sense and Nonsense About Crime and Drugs: A Policy Guide. 6th ed. Belmont, CA: Thomson/Wadsworth, 2006.

Παραπομπή σε μορφή MLA (9th εκδ.)

Walker, Samuel. Sense and Nonsense About Crime and Drugs: A Policy Guide. 6th ed. Thomson/Wadsworth, 2006.