1.
|
[Place of publication not identified] : [publisher not identified], 1973.
German | 29 DE |
|
2.
|
[Paris, France] : [UNESCO], 1961.
English | 6A OMPI |
|
3.
|
[Paris, France] : [UNESCO], 1961.
French | 6A OMPI |
|
4.
|
New York, New York : The Copyright Society of the USA, 1982.
English | 14 US |
|
5.
|
[Paris, France] : [UNESCO], 1956.
French | 6A OMPI |
|
6.
|
[Paris, France] : [UNESCO], 1954.
Danish | 6A OMPI |
|