Author
Fatio, Victor
2
International Union for the Protection of Industrial Property
2
Italia Ministero di agricoltura, industria e commercio
2
Kongress
2
Schweiz Eidgenössische Ornithologische Kommission
2
Schweiz Statistisches Bureau
2
Diserens, Edouard
1
Institut international d'agriculture
1
Studer, Theophil 1845-1922
1
Studer, Théophile
1