APA (7th ed.) Citation

Cooper, D. D., Laughin, J., & Merton, T. (1997). Selected Letters. W.W. Norton & Company.

Chicago Style (17th ed.) Citation

Cooper, David D., James Laughin, and Thomas Merton. Selected Letters. New York London: W.W. Norton & Company, 1997.

MLA (9th ed.) Citation

Cooper, David D., et al. Selected Letters. W.W. Norton & Company, 1997.