Krugman,Paul R. International Economics : Theory and Policy / by Paul R. Krugman and Maurice Obstfeld - 4th ed. - New York: Addison Wesley, 1996. - xxviii,766p. ISBN: 9780673524973 Subjects--Topical Terms: Economics Heckscher Ohlin Model MicroeconomicsTrade Policy Dewey Class. No.: 332.15 / KRU/I