Παραπομπή APA

Krugman, P. (1991). Trade with Japan has the opened wider? Chicago: The University of Chicago Press.

Παραπομπή Chicago Style

Krugman, Paul. Trade With Japan Has the Opened Wider? Chicago: The University of Chicago Press, 1991.

Παραπομπή MLA

Krugman, Paul. Trade With Japan Has the Opened Wider? Chicago: The University of Chicago Press, 1991.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.