APA (7th ed.) Citation

Galen & Brock, A. J. (1916). Galen On the natural faculties. Harvard University Press.

Chicago Style (17th ed.) Citation

Galen and Arthur John Brock. Galen On the Natural Faculties. Cambridge: Harvard University Press, 1916.

MLA (9th ed.) Citation

Galen and Arthur John Brock. Galen On the Natural Faculties. Harvard University Press, 1916.