APA aipamena

McHugh, J. (1980). Alexander Holley and the makers of steel. Baltimore: The Johns Hopkins University Press.

Chicago Style aipamena

McHugh, Jeanne. Alexander Holley and the Makers of Steel. Baltimore: The Johns Hopkins University Press, 1980.

MLA aipamena

McHugh, Jeanne. Alexander Holley and the Makers of Steel. Baltimore: The Johns Hopkins University Press, 1980.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.