APA (7th ed.) Citation

Theophrastus, Richards, J. F. C., & Caley, E. R. (1956). Theophrastus on stones. Ohio State University.

Chicago Style (17th ed.) Citation

Theophrastus, John F. C. Richards, and Earle Radcliffe Caley. Theophrastus on Stones. Columbus, Ohio: Ohio State University, 1956.

MLA (9th ed.) Citation

Theophrastus, et al. Theophrastus on Stones. Ohio State University, 1956.