Natural World
1983 · Writer
Dear Mr. Gable
1968 · Producer
Puma: Lion of the Andes
1996 · Executive Producer
Hollywood: The Dream Factory
1972 · Executive Producer
Voyage of the Brigantine Yankee
Writer
Inside the White House
The New Chimpanzees
1995 · Executive Producer
30 Years of National Geographic Specials
Secrets of the Titanic
1986 · Writer
Pursuit of the Giant Bluefin
1999 · Executive Producer
Birds Do It, Bees Do It
1974 · Director
Jewels of the Caribbean Sea
1994 · Writer
Torn Between Two Fathers
1989 · Writer
The Really Big Family
1966 · Dialogue
Okavango: Africa's Wild Oasis
Search for the Submarine I-52
2000 · Writer
National Geographic's Storm of the Century
1998 · Executive Producer
The Dragons of Galapagos
1998 · Narrator (voice)
