Hansen, R. P. (1959). There's always a payoff. Mill and Morrow.
Cita Chicago Style (17a ed.)Hansen, Robert P. There's Always a Payoff. N.Y.: Mill and Morrow, 1959.
Cita MLA (8a ed.)Hansen, Robert P. There's Always a Payoff. Mill and Morrow, 1959.
Precaución: Estas citas no son 100% exactas.