APA aipamena

Comstock, H. B. (1993). The iron horse: An illustrated history of steam locomotives. [Sykesville? Md.]: Greenberg Pub. Co..

Chicago Style aipamena

Comstock, Henry B. The Iron Horse: An Illustrated History of Steam Locomotives. [Sykesville? Md.]: Greenberg Pub. Co., 1993.

MLA aipamena

Comstock, Henry B. The Iron Horse: An Illustrated History of Steam Locomotives. [Sykesville? Md.]: Greenberg Pub. Co., 1993.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.