Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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