APA (7th ed.) Citation

Baldwin, R. E., & Harrigan, J. (2007). Zeros, quality and space: Trade theory and trade evidence. CEPR.

Chicago Style (17th ed.) Citation

Baldwin, Richard E., and James Harrigan. Zeros, Quality and Space: Trade Theory and Trade Evidence. London: CEPR, 2007.

MLA (9th ed.) Citation

Baldwin, Richard E., and James Harrigan. Zeros, Quality and Space: Trade Theory and Trade Evidence. CEPR, 2007.