Author
Films for the Humanities & Sciences (Firm)
31
Infobase
31
Infobase,
26
Global Screen
20
BBC Worldwide Ltd
14
National Geographic Television & Film
3
Eagle Rock Entertainment
2
Fry, Stephen, 1957-,
2
Productions Multi-Monde
2
Protel Inc
2
ARTE France,
1
BBC (Firm)
1
Balfour Films
1
Electric Sky (Firm)
1
Ente Público Radiotelevisión (Firm)
1
FremantleMedia
1
German United Distributors
1
Illuminations (Firm)
1
Maryknoll World Productions
1
Minotaur International
1
New Atlantis (Firm)
1
Public Broadcasting Service (U.S.)
1
Radiotelevisión Española
1