Author
Films for the Humanities & Sciences (Firm)
11
Infobase
11
Tapestry International (Firm)
4
4 Learning (Firm)
2
Fred Friendly Seminars (Firm)
2
National Association of Home Builders of the United States
2
Canadian Broadcasting Corporation
1
Filmoption International (Firm)
1
Infobase,
1
Nour Productions
1
SW Pictures LTD (Firm)
1