Harling, R. (1967). The hollow sunday. The Companion Book Club.
Cita Chicago (17th ed.)Harling, Robert. The Hollow Sunday. Londres, Inglaterra: The Companion Book Club, 1967.
Cita MLA (9th ed.)Harling, Robert. The Hollow Sunday. The Companion Book Club, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.