APA (7th ed.) Citation

Ogden, M. A., Keller, C., & Thoreau, H. D. (1985). Walden, a concordance. Garland Pub..

Chicago Style (17th ed.) Citation

Ogden, Merlene A., Clifton Keller, and Henry David Thoreau. Walden, a Concordance. New York: Garland Pub., 1985.

MLA (9th ed.) Citation

Ogden, Merlene A., et al. Walden, a Concordance. Garland Pub., 1985.