Niederhoffer, A. (1969). Behind the shield: The police in urban society. Anchor books.
Cita Chicago Style (17a ed.)Niederhoffer, Arthur. "Behind the Shield: The Police in Urban Society." Anchor Books 1969.
Cita MLA (9a ed.)Niederhoffer, Arthur. "Behind the Shield: The Police in Urban Society." Anchor Books, 1969.
Precaución: Estas citas no son 100% exactas.