Lua APA (7ú heag.)
Chrismas, R. (2013). Canadian policing in the 21st century: A frontline officer on challenges and changes. McGill-Queen's University Press.
Lua i Stíl Chicago (17ú heag.)
Chrismas, Robert. Canadian Policing in the 21st Century: A Frontline Officer on Challenges and Changes. Montreal: McGill-Queen's University Press, 2013.
Lua MLA (9ú heag.)
Chrismas, Robert. Canadian Policing in the 21st Century: A Frontline Officer on Challenges and Changes. McGill-Queen's University Press, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.