1.
2.
New York : Allworth Press, c2002.
First edition.
English | N 635 DUB.T |
3.
[Place of publication not identified] : [publisher not identified], 2002.
First edition.
English | N 635 KRA.L |
4.
Geneva : World Intellectual Property Organization, 1992.
English | E 231G252 WIPO.G |
5.
6.