National Geographic Society (U. S.)
(3)
Cecil Castellucci/ Marley Zarcone (ILT)
(2)
Elizabeth Shove (EDT)/ Frank Trentmann (EDT)/ Richard Wilk (EDT)
(2)
Jane Roland (University of Massachusetts Boston Martin Emerita USA)
(2)
John Ringo/ Travis S. Taylor
(2)
National Geographic Kids (COR)
(2)