نوع المادة
Statistics
6
Statistiques
6
Conference papers and proceedings
4
Congresses
4
Congrès
4
Government publications
4
Periodicals
4
Actes de congrès
2
Guides, manuels, etc
2
Handbooks and manuals
2
Handbooks, manuals, etc
2
Abstracts
1
Congress
1
Directory
1
Government Publications, Federal
1
Guides et manuels
1
Handbook
1
Periodical
1
handbooks
1
manuals (instructional materials)
1