Davis, E. (1960). Readings for opinion (2nd ed.). Prentice-Hall.
Cita Chicago (17th ed.)Davis, Earle. Readings for Opinion. 2nd ed. Englewood clif.: Prentice-Hall, 1960.
Cita MLA (9th ed.)Davis, Earle. Readings for Opinion. 2nd ed. Prentice-Hall, 1960.
Atenció: Aquestes cites poden no estar 100% correctes.