APA (7th ed.) Citation

Queen, E. (1956). The american guin mystery. Penguin.

Chicago Style (17th ed.) Citation

Queen, Ellery. The American Guin Mystery. [Lloc de publicació no identificat]: Penguin, 1956.

MLA (9th ed.) Citation

Queen, Ellery. The American Guin Mystery. Penguin, 1956.

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