एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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