Gaya APA

Klockars, C, B., Mastrofski, S, D. (1991). Thinking about police : contemporaray readings (2nd ed). New York: McGraw-Hill.

Gaya MLA

Klockars, Carl, B.., Mastrofski, Stephen, D.. "Thinking about police : contemporaray readings". 2nd ed New York: McGraw-Hill, 1991. Text.