AUTHOR
Kane, Dennis B.
12
Skinner, Thomas
11
WQED (Television station : Pittsburg, Pa.)
10
National Geographic Society
8
National Geographic Society, Washington, D.C
6
Jampel, Barbara
4
Birch, Miriam
2
Noxon, Nicolas
2
Saxon, David
2
Ballard, Robert D.
1
Bredar, John B.
1
Breeden, Stanley
1
Brock, Norris
1
Buch, Miriam
1
Caragol, Pamela
1
Cerveris, Michael
1
Hughes, David
1
Huley, Graham
1
Kane, David
1
Kane, Dennis
1
Kelly, Tim
1
Lyall, Robert
1
National Geographic Society (U.S.)
1
National Geographic Television & Film
1
National Geographic society, Washington, D. C. WQED (Television station : Pittsburg, Pa.)
1
Pomasanoff, Alex
1
Rosenfeld, Michael
1
Simon, Tom
1
WQED (Television station : Pittsburgh, Pa.)
1
Wiser, Christine
1
Wolfer Production
1
Wright, Belinda
1
Young, Rober M.
1
Zakin, Robert
1