APA aipamena

Sengupta, N. (2007). Economics of trade facilitation. Oxford University Press.

Chicago Style aipamena

Sengupta, Nirmal. Economics of Trade Facilitation. New Delhi: Oxford University Press, 2007.

MLA aipamena

Sengupta, Nirmal. Economics of Trade Facilitation. Oxford University Press, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.