APA (7th ed.) Citation

Ring, E. (1993). Henry David Thoreau: In step with nature. Millbrook Press.

Chicago Style (17th ed.) Citation

Ring, Elizabeth. Henry David Thoreau: In Step with Nature. Brookfield, Conn.: Millbrook Press, 1993.

MLA (9th ed.) Citation

Ring, Elizabeth. Henry David Thoreau: In Step with Nature. Millbrook Press, 1993.