(F/E/S) : French, English and Spanish version; Paris : UNESCO; Geneva : WIPO; 1e Session; Study of the international regulation of the "Intellectual Property" aspects of folklore protection; 2e Session; Revised model provisions for national laws on the protection of expressions of folklore; See French version in GROUPE DE TRAVAIL SUR LES ASPECTS PROPRIETE INTELLECTUELLE DE LA PROTECTION DU FOLKLORE : OMPI/UNESCO; See Spanish version in GRUPO DE TRABAJO SOBRE LOS ASPECTOS DE LA PROPIEDAD INTELECTUAL EN LA PROTECCION DEL FOLKLORE : OMPI/UNESCO; 1e : Geneva, 7-9 January 1980; UNESCO/WIPO/WG.I/FOLK/1-5; 2e: Geneva, 9-13 February 1981; UNESCO/WIPO/WG.II/FOLK/1-4;.