Cita APA

Ohlin, B. G. 1., & Lönnblad, C. (1999). The theory of interregional exchange. Sweden: Institute for International Economic Studies.

Citación estilo Chicago

Ohlin, Bertil Gotthard 1899-1979, y Christina Lönnblad. The Theory of Interregional Exchange. Sweden: Institute for International Economic Studies, 1999.

Cita MLA

Ohlin, Bertil Gotthard 1899-1979, y Christina Lönnblad. The Theory of Interregional Exchange. Sweden: Institute for International Economic Studies, 1999.