WALKER, S. (1985). Sence And Nonsence About Crime A Polie Guide Samuel Walker. Brooks/Cole Publishing Company.
Lua i Stíl Chicago (17ú heag.)WALKER, Samuel. Sence And Nonsence About Crime A Polie Guide Samuel Walker. Brooks/Cole Publishing Company, 1985.
Lua MLA (8ú heag.)WALKER, Samuel. Sence And Nonsence About Crime A Polie Guide Samuel Walker. Brooks/Cole Publishing Company, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.