Παραπομπή APA

Baldwin, R. E. (1971). Nontariff distortion of international trade. The Brookings institution.

Παραπομπή Chicago Style

Baldwin, Robert E. Nontariff Distortion of International Trade. Washington: The Brookings institution, 1971.

Παραπομπή MLA

Baldwin, Robert E. Nontariff Distortion of International Trade. The Brookings institution, 1971.