Goldberg, L. S., Klein, M. W., Krugman, P. R., & Obstfeld, M. (1997). Study guide to accompany "International economics", theory and policy, fourth edition. HarperCollins.
Chicago Style (17th ed.) CitationGoldberg, Linda S., Michael W. Klein, Paul R. Krugman, and Maurice Obstfeld. Study Guide to Accompany "International Economics", Theory and Policy, Fourth Edition. New York: HarperCollins, 1997.
MLA (9th ed.) CitationGoldberg, Linda S., et al. Study Guide to Accompany "International Economics", Theory and Policy, Fourth Edition. HarperCollins, 1997.
Warning: These citations may not always be 100% accurate.