APA (7th ed.) Citation

Lawrence, D. H., Boulton, J. T., Boulton, M. H., & Lacy, G. M. (1991). The letters of D.H. Lawrence. University Press.

Chicago Style (17th ed.) Citation

Lawrence, D. H., James Thompson Boulton, Margaret H. Boulton, and Gerald M. Lacy. The Letters of D.H. Lawrence. Cambridge [etc.]: University Press, 1991.

MLA (9th ed.) Citation

Lawrence, D. H., et al. The Letters of D.H. Lawrence. University Press, 1991.