Andersen, R. (1981). Robert Cover. Twayne.
Cita Chicago (17th ed.)Andersen, Richard. Robert Cover. Boston: Twayne, 1981.
Cita MLA (9th ed.)Andersen, Richard. Robert Cover. Twayne, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)