APA (7th ed.) Citation

Elhansn, H., & Krugman, P. R. (1999). Trade Policy and Market Structure. MIT Press.

Chicago Style (17th ed.) Citation

Elhansn, Helpman, and Paul R. Krugman. Trade Policy and Market Structure. London: MIT Press, 1999.

MLA (9th ed.) Citation

Elhansn, Helpman, and Paul R. Krugman. Trade Policy and Market Structure. MIT Press, 1999.