APA (7th ed.) Citation

Grossman, G. M., & Helpman, E. (2002). Interest groups and trade policy. Princeton University Press.

Chicago Style (17th ed.) Citation

Grossman, Gene M., and Elhanan Helpman. Interest Groups and Trade Policy. Princeton, N.J. [etc.]: Princeton University Press, 2002.

MLA (9th ed.) Citation

Grossman, Gene M., and Elhanan Helpman. Interest Groups and Trade Policy. Princeton University Press, 2002.