1.
2.
3.
[Place of publication not identified] : [publisher not identified], 1984.
English | 10 AU |
4.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1980.
German | 28 DE |
5.
Altrincham [England] : Published for the author by J. Sherratt, 1974.
English | N 637 PAL.Y |
6.
7.
[Place of publication not identified] : [publisher not identified], 1983.
English | FR 48 |
8.
[Place of publication not identified] : [publisher not identified], 1984.
English | 68 US |
9.
[Place of publication not identified] : [publisher not identified], 1989.
Portuguese | 29 DE |
10.
[Place of publication not identified] : [publisher not identified], 1989.
German | 29 DE |