Παραπομπή σε μορφή APA (7η εκδ.)

Davis, D. (1996). The Heckscher-Ohlin-Vanek model of trade: Why does it fail? when does it workn. National Bureau of Economics.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Davis, D.R. The Heckscher-Ohlin-Vanek Model of Trade: Why Does It Fail? When Does It Workn. Cambridge: National Bureau of Economics, 1996.

Παραπομπή σε μορφή MLA (9th εκδ.)

Davis, D.R. The Heckscher-Ohlin-Vanek Model of Trade: Why Does It Fail? When Does It Workn. National Bureau of Economics, 1996.