Haberler, G. (1955). A survey of international trade theory. Princeton University.
Cita Chicago Style (17a ed.)Haberler, Gottfried. A Survey of International Trade Theory. Cambridge: Princeton University, 1955.
Cita MLA (8a ed.)Haberler, Gottfried. A Survey of International Trade Theory. Princeton University, 1955.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.