1.
[Place of publication not identified] : [publisher not identified], 1966.
French | 6A OMPI |
2.
[Geneva, Switzerland] : [World Intellectual Property Organization], 1966.
English | 6B OMPI |
3.
Geneva [Switzerland] : International Bureau for the Protection of Industrial Property, 1969.
English | 10B OMPI |
4.
Courbevoie [France] : Institut National de la Propriété Industrielle, 1969.
French | 10A OMPI |