Johnson, P. H. (1961). The unspeakable skipton. Penguin Books.
Cita Chicago (17th ed.)Johnson, Pamela Hansford. The Unspeakable Skipton. Harmondsworth: Penguin Books, 1961.
Cita MLA (9th ed.)Johnson, Pamela Hansford. The Unspeakable Skipton. Penguin Books, 1961.
Atenció: Aquestes cites poden no estar 100% correctes.