1.
|
[Paris, France] : [UNESCO], 1971.
French | 6A OMPI |
|
2.
|
[Place of publication not identified] : [publisher not identified], 1970.
English | 3 GB |
|
3.
|
[Geneva, Switzerland] : [World Intellectual Property Organization], 1971.
English | 6B OMPI |
|
4.
|
[Paris, France] : [UNESCO], 1909.
French | 6A OMPI |
|
5.
|
[Heidelberg, Germany] : [Springer], 1973.
English | 34 DE |
|
6.
|
[Paris, France] : [UNESCO], 1959.
French | 6A OMPI |
|