1.
Stockholm [Sweden] : Nordiskt Immateriellt Rättsskydd (NIR), 1970.
Swiss german | 3 SE |
2.
[Geneva, Switzerland] : [World Intellectual Property Organization], 1964.
English | 6B OMPI |
3.
Stockholm [Sweden] : Nordiskt Immateriellt Rättsskydd (NIR), 1972.
Swiss german | 3 SE |
4.
Stockholm [Sweden] : Nordiskt Immateriellt Rättsskydd (NIR), 1975.
Swiss german | 3 SE |
5.
New York, New York : Copyright Society of the USA, 1973.
Italian | 14 US |
6.
7.
8.