APA (7th ed.) Citation

Thoreau, H. D. (2004). Walden. Collector's Library.

Chicago Style (17th ed.) Citation

Thoreau, Henry David. Walden. London: Collector's Library, 2004.

MLA (9th ed.) Citation

Thoreau, Henry David. Walden. Collector's Library, 2004.

Warning: These citations may not always be 100% accurate.