Fiorentino, Roberto V. The changing landscape of Regional Trade Agreements : 2006 update / Roberto V. Fiorentino, Luis Verdeja and Christelle Toqueboeuf - Geneva : World Trade Organisation, 2006 - 37 p. : ill., col., maps ; 30 cm. - Discussion Paper ; no. 12 . Includes bibliographical references. Subjects--Topical Terms: Landscape changes