APA aipamena

Gray, H. P. (1985). Free trade or protectionn: A pragmatic analysis. Macmillan Press.

Chicago Style aipamena

Gray, H Peter. Free Trade or Protectionn: A Pragmatic Analysis. Basingstoke, Hants, Eng: Macmillan Press, 1985.

MLA aipamena

Gray, H Peter. Free Trade or Protectionn: A Pragmatic Analysis. Macmillan Press, 1985.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.