APA aipamena

Kemp, M. (1991). Labour Unions and the Theory of International Trade. ELSEVIER.

Chicago Style aipamena

Kemp, M.C. Labour Unions and the Theory of International Trade. ELSEVIER, 1991.

MLA aipamena

Kemp, M.C. Labour Unions and the Theory of International Trade. ELSEVIER, 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.