Heller, Robert H. International trade : Theory and empirical evidence / by H. Robert Heller - 2nd ed. - New Delhi : Prentice- Hall Of India Pvt. Ltd. , 1977 . - 236 p. Hard Back Subjects--Topical Terms: The basic of tradeEconomic growthInternational tradeEconomic unions Dewey Class. No.: 382 / ROB-I