Cita APA

Helpman, E. 1. (2011). Understanding global trade. Cambridge, Massachusetts: The Belknap Press of Harvard University Press.

Citación estilo Chicago

Helpman, Elhanan 1943-. Understanding Global Trade. Cambridge, Massachusetts: The Belknap Press of Harvard University Press, 2011.

Cita MLA

Helpman, Elhanan 1943-. Understanding Global Trade. Cambridge, Massachusetts: The Belknap Press of Harvard University Press, 2011.