APA (7th ed.) Citation

Lewis, R. E., Blake, N. F., & Edwards, A. S. G. (1985). Index of printed Middle English prose. Garland.

Chicago Style (17th ed.) Citation

Lewis, Robert E., Norman F. Blake, and A. S. G. Edwards. Index of Printed Middle English Prose. New York [u.a.]: Garland, 1985.

MLA (9th ed.) Citation

Lewis, Robert E., et al. Index of Printed Middle English Prose. Garland, 1985.