1
by Dupree, Nancy Hatch
Published 1994
Documentary Educational Resources

2
by Dawkins, David
Published 1993
Filmakers Library

3
by Feldman, Nancy G.
Published 2011
Field Museum

4
by Cohen, Nancy E.
Published 2007
Documentary Educational Resources

5
by Nicholson, William
Published 1986
British Broadcasting Corporation (BBC)

6
by DiGioia, Herbert
Published 1975
Documentary Educational Resources

7
by Berliner, Alan
Published 1996
Filmakers Library