APA (7th ed.) Citation

Williams, W. C., Laughlin, J., & Witemeyer, H. (1989). William Carlos Williams and James Laughlin: Selected letters. Norton.

Chicago Style (17th ed.) Citation

Williams, William Carlos, James Laughlin, and Hugh Witemeyer. William Carlos Williams and James Laughlin: Selected Letters. New York: Norton, 1989.

MLA (9th ed.) Citation

Williams, William Carlos, et al. William Carlos Williams and James Laughlin: Selected Letters. Norton, 1989.