Παραπομπή σε μορφή APA (7η εκδ.)

Sinclair, P., & Vines, D. (1995). Bigger Trade Blocs Need Not Entail More Protection. Department of Economics (University of Birmingham).

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sinclair, P., και D. Vines. Bigger Trade Blocs Need Not Entail More Protection. Department of Economics (University of Birmingham), 1995.

Παραπομπή σε μορφή MLA (9th εκδ.)

Sinclair, P., και D. Vines. Bigger Trade Blocs Need Not Entail More Protection. Department of Economics (University of Birmingham), 1995.