APA (7th ed.) Citation

Obstfeld, M., Krugman, P. R., & Melitz, M. J. (2015). International economics: Theory and policy. Pearson Education.

Chicago Style (17th ed.) Citation

Obstfeld, Maurice, Paul R. Krugman, and Marc J. Melitz. International Economics: Theory and Policy. Pearson Education, 2015.

MLA (8th ed.) Citation

Obstfeld, Maurice, et al. International Economics: Theory and Policy. Pearson Education, 2015.