References
- Richardson, R. D., Jr. (1988). Henry Thoreau: A life of the mind. University of California Press.
- Richardson, R. D., Jr. (1995). Emerson: The mind on fire. University of California Press.
- Richardson, R. D. (2007). William James: In the maelstrom of American modernism. Mariner Books.
- Richardson, R. D. (2023). Three Roads back: How Emerson, Thoreau, and William James responded to the greatest losses of their lives. Princeton University Press.