Chura, P. (2010). Thoreau the land surveyor. University Press of Florida.
Chicago-čujuhus (17. p.)Chura, Patrick. Thoreau the Land Surveyor. Gainesville, FL: University Press of Florida, 2010.
MLA-čujuhus (9. p.)Chura, Patrick. Thoreau the Land Surveyor. University Press of Florida, 2010.
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