Παραπομπή APA

Thorean, H. D. Walden or life in the woods. Grolier.

Παραπομπή Chicago Style

Thorean, Henry David. Walden or Life in the Woods. New York: Grolier.

Παραπομπή MLA

Thorean, Henry David. Walden or Life in the Woods. Grolier.