1.
Geneva, Switzerland : International Bureau for the Protection of Industrial Property, 1983.
English | 10B OMPI |
2.
[Geneva, Switzerland] : [The International Union for the Protection of New Varieties of Plants (UPOV)], 1983.
English | 1 UPOV |
3.
Courbevoie [France] : Institut National de la Propriété Industrielle, 1983.
French | 10A OMPI |
4.
[Geneva, Switzerland] : [The International Union for the Protection of New Varieties of Plants (UPOV)], 1983.
English | 1 UPOV |