APA Citation

Helpman, E. 1., & Krugman, P. R. 1. (1989). Trade policy and market structure. Cambridge, Massachusetts: The MIT Press.

Chicago Style Citation

Helpman, Elhanan 1943-, and Paul Robin 1953- Krugman. Trade Policy and Market Structure. Cambridge, Massachusetts: The MIT Press, 1989.

MLA Citation

Helpman, Elhanan 1943-, and Paul Robin 1953- Krugman. Trade Policy and Market Structure. Cambridge, Massachusetts: The MIT Press, 1989.

Warning: These citations may not always be 100% accurate.