Lloyd, Peter J. 3 x 3 theory of customs unions / Peter J. Lloyd - Stockholm : Institute for International Economic Studies (IIES) , 1980 - 41p. : ill. ; 28 cm. - Seminar paper (University of Stockholm, Institute for International Economic Studies,) no. 144 . Includes bibliographical references. Subjects--Topical Terms: Customs unions Gov. Doc. Class. No.: SE Sto. U IIES SP-144