APA (7th ed.) Citation

Blegen, С. W., Rawson, M., & Caskey, J. L. (1953). Troy. The Sixth Settlement.

Chicago Style (17th ed.) Citation

Blegen, С. W., M. Rawson, and J. L. Caskey. Troy. The Sixth Settlement. 1953.

MLA (8th ed.) Citation

Blegen, С. W., et al. Troy. The Sixth Settlement. 1953.