Author
Infobase,
31
Cable News Network
29
Films for the Humanities & Sciences (Firm)
8
Infobase
8
ABC News Productions
2
Agency for Instructional Technology
2
Public Broadcasting Service (U.S.)
2
SpringerLink (Online service)
2
American Public Television
1
Cook, Nicolas,
1
Europe Images International
1
Journeyman Pictures (Firm)
1
Library of Congress. Congressional Research Service,
1
Lisimba, Alpha Furbell,
1
Pick, James B.,
1
Sarkar, Avijit,
1
Scorpion TV
1
Williams, Brock R.,
1