Citazione APA

Thoreau, H. D. . .. (1985). Walden or life in the woods. English language programs.

Stile di citazione Chicago

Thoreau, Henry David. Walden or Life in the Woods. United states: English language programs, 1985.

Citazione MLA

Thoreau, Henry David. Walden or Life in the Woods. English language programs, 1985.