APA (7th ed.) Citation

(1991). Heckscher-Ohlin trade theory. MIT Press.

Chicago Style (17th ed.) Citation

Heckscher-Ohlin Trade Theory. Cambridge [u.a.]: MIT Press, 1991.

MLA (9th ed.) Citation

Heckscher-Ohlin Trade Theory. MIT Press, 1991.

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