APA aipamena

Wall, J. F. (1970). Andrew carnegie. New York: Oxford University Press.

Chicago Style aipamena

Wall, Joseph Frazier. Andrew Carnegie. New York: Oxford University Press, 1970.

MLA aipamena

Wall, Joseph Frazier. Andrew Carnegie. New York: Oxford University Press, 1970.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.