Berrigan, D. (1972). America is hard to find ([1st ed.].). Doubleday.
Cita Chicago Style (17a ed.)Berrigan, Daniel. America Is Hard to Find. [1st ed.]. Garden City, N.Y.: Doubleday, 1972.
Cita MLA (8a ed.)Berrigan, Daniel. America Is Hard to Find. [1st ed.]. Doubleday, 1972.
Precaución: Estas citas no son 100% exactas.