APA aipamena

Poor, H. V. (1860). History of the railroads and canals of the United States. J. H. Schultz.

Chicago Style aipamena

Poor, Henry Varnum. History of the Railroads and Canals of the United States. New York: J. H. Schultz, 1860.

MLA aipamena

Poor, Henry Varnum. History of the Railroads and Canals of the United States. J. H. Schultz, 1860.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.