Genre
- Congresses 5 Treffer
- Periodicals 5 Treffer
- Atlases 1 Treffer
- Bibliography 1 Treffer
- Classification 1 Treffer
- Conference papers and proceedings 1 Treffer
- Diaries 1 Treffer
- Folklore 1 Treffer
- Handbooks, manuals, etc 1 Treffer
- Identification 1 Treffer
- Maps 1 Treffer
- Photographs from space 1 Treffer
- Sources 1 Treffer
- Tables 1 Treffer