(F/E/S/R) : French, English, Spanish and Russian version; Paris : UNESCO: Geneva : WIPO; Vol I : French and English version; Vol II: Spanish and Russian version; See French version in CONFERENCE INTERNATIONALE D'ETATS SUR LA PROTECTION DES PHONOGRAMMES (GENEVE, 18-29 OCTOBRE 1971) : OMPI/UNESCO : 1971; See Spanish version in CONFERENCIA INTERNACIONAL DE ESTADOS SOBRE LA PROTECCION DE LOS FONOGRAMS (GINEBRA, 18-29 OCTUBRE 1971) : OMPI/UNESCO : 1971; See also Russian version;.