APA (7th ed.) Citation

Butler, E. M. (1979). Ritual magic / by E.M. Butler. Cambridge University Press.

Chicago Style (17th ed.) Citation

Butler, E. M. Ritual Magic / by E.M. Butler. Cambridge (etc.): Cambridge University Press, 1979.

MLA (9th ed.) Citation

Butler, E. M. Ritual Magic / by E.M. Butler. Cambridge University Press, 1979.

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