APA (7th ed.) Citation

Juan de Salisbury ca., Millor, W. J., & Brooke, C. (1979). The letters of John Salisbury. At the Clarendon Press.

Chicago Style (17th ed.) Citation

Juan de Salisbury ca., William J. Millor, and Christopher Brooke. The Letters of John Salisbury. Oxford: At the Clarendon Press, 1979.

MLA (9th ed.) Citation

Juan de Salisbury ca., et al. The Letters of John Salisbury. At the Clarendon Press, 1979.