APA (7th ed.) Citation

De Polnay, P. (1947). The umbrella thorn (Book Club ed.). Hutchinson Universal Book Club.

Chicago Style (17th ed.) Citation

De Polnay, Peter. The Umbrella Thorn. Book Club ed. London: Hutchinson Universal Book Club, 1947.

MLA (8th ed.) Citation

De Polnay, Peter. The Umbrella Thorn. Book Club ed. Hutchinson Universal Book Club, 1947.

Warning: These citations may not always be 100% accurate.