Beach, R. The Barrier. Hodder and Stoughton.
Cita Chicago (17th ed.)Beach, Rex. The Barrier. London: Hodder and Stoughton.
Cita MLA (9th ed.)Beach, Rex. The Barrier. Hodder and Stoughton.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)