1.
|
[Place of publication not identified] : [publisher not identified], 1989.
French | 53 FR |
|
2.
|
Courbevoie [France] : Institut National de la Propriété Industrielle, 1988.
French | 10A OMPI |
|
3.
|
Agincourt, Ontario : Carswell Co., 1987.
Italian | 11 CA |
|
4.
|
Geneva, Switzerland : World Intellectual Property Organization, 1989.
English | 16 OMPI |
|
5.
|
[Heidelberg, Germany] : [Springer], 1986.
English | 34 DE |
|
6.
|
[Place of publication not identified] : [publisher not identified], 1990.
German | 29 DE |
|