1.
2.
3.
London, England : Sweet & Maxwell, 1984.
English | 10 GB |
4.
Geneva [Switzerland] : International Bureau for the Protection of Industrial Property, 1985.
English | 10B OMPI |
5.
6.
7.
London [England] : Longman, 1989.
English | G 71 BOU.P |
8.
9.
Courbevoie [France] : Institut National de la Propriété Industrielle, 1985.
French | 10A OMPI |
10.