APA (7th ed.) Citation

Griffin, J. H., Griffin, J. H., & Merton, T. (1970). A hidden wholeness: The visual world of Thomas Merton. Houghton Mifflin Co.

Chicago Style (17th ed.) Citation

Griffin, John Howard, John Howard Griffin, and Thomas Merton. A Hidden Wholeness: The Visual World of Thomas Merton. Boston: Houghton Mifflin Co, 1970.

MLA (9th ed.) Citation

Griffin, John Howard, et al. A Hidden Wholeness: The Visual World of Thomas Merton. Houghton Mifflin Co, 1970.