@book{ Solr-876772, title = {Economic impact of generalized tariff preferences}, series = {Thames essay}, author = {Langhammer, Rolf J.}, editor = {Sapir, AndreĢ}, address = {Aldershot, Hants, England ; Brookfield, Vt.}, publisher = {Gower Pub. Co.}, year = {1987}, pages = {90}, }