एपीए उद्धरण

Walker, S. (2005). The police in America. New York: McGraw-Hill.

शिकागो स्टाइल उद्धरण

Walker, Samuel. The Police in America. New York: McGraw-Hill, 2005.

एमएलए उद्धरण

Walker, Samuel. The Police in America. New York: McGraw-Hill, 2005.