APA (7th ed.) Citation

Smith, W. R., Black, J. S., & Chrystal, G. W. (1969). Lectures & essays of William Robertson Smith. Harper & Row.

Chicago Style (17th ed.) Citation

Smith, W. Robertson, J. Sutherland Black, and George William Chrystal. Lectures & Essays of William Robertson Smith. New York: Harper & Row, 1969.

MLA (9th ed.) Citation

Smith, W. Robertson, et al. Lectures & Essays of William Robertson Smith. Harper & Row, 1969.