APA (7th ed.) Citation

Breuil, H., Boyle, M. E., & Scherz, E. R. (1957). Philipp Cave. Abbé Breuil Publications.

Chicago Style (17th ed.) Citation

Breuil, Henri, Mary E. Boyle, and E. R. Scherz. Philipp Cave. London: Abbé Breuil Publications, 1957.

MLA (9th ed.) Citation

Breuil, Henri, et al. Philipp Cave. Abbé Breuil Publications, 1957.