Other form of name PPP: Convention concerning the Protection of the World Cultural and Natural Heritage (1972) Other form of name PPP: UNESCO World Heritage Convention (1972) Other form of name PPP: World Heritage Convention (1972) Other form of name PPP: Convention concernant la protection du patrimoine mondial culturel et naturel (1972) Other form of name PPP: Convention pour la protection du patrimoine mondial, culturel et naturel (1972)
