1.
|
Geneva : WIPO, 1980.
English | 10.34667/tind.28812 |
|
2.
|
Geneva [Switzerland] : World Intellectual Property Organization, 1988.
English | E 2314F191 OMPI.S |
|
3.
|
Paris : Litec, c2001.
French | F 40 CPR.Q |
|
4.
|
Geneva : World Intellectual Property Organization, 1995.
English | E 23191F192 WIPO.W |
|
5.
|
Geneva, Switzerland : World Intellectual Property Organization, 1990.
English | E 23F21 WIPO.I |
|
6.
|
Oxford : Hart Pub., 1999.
English | F 191 COT.S |
|