Cook, R. L. (1966). Passage to Walden: Containing a key to references and citations (2nd ed.). Russell & Russell.
Cita Chicago (17th ed.)Cook, Reginald Lansing. Passage to Walden: Containing a Key to References and Citations. 2nd ed. New York: Russell & Russell, 1966.
Cita MLA (9th ed.)Cook, Reginald Lansing. Passage to Walden: Containing a Key to References and Citations. 2nd ed. Russell & Russell, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.