APA (7th ed.) Citation

Escoula, Y. (1959). The Spanish tulip. The Harvill Press.

Chicago Style (17th ed.) Citation

Escoula, Yvonne. The Spanish Tulip. London: The Harvill Press, 1959.

MLA (8th ed.) Citation

Escoula, Yvonne. The Spanish Tulip. The Harvill Press, 1959.