APA (7th ed.) Citation

Queen, E. (1962). The Egyptian cross mystery. Penguin.

Chicago Style (17th ed.) Citation

Queen, Ellery. The Egyptian Cross Mystery. Harmondsworth: Penguin, 1962.

MLA (8th ed.) Citation

Queen, Ellery. The Egyptian Cross Mystery. Penguin, 1962.

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