National Geographic
National Geographic Partners, {s.a.}
Majalah, Jurnal, Buletin
Macdonald, Phil
National Geographic Traveler Thailand
National Geographic, 2009
Buku Teks
National Geographic Indonesia
Gramedia Percetakan, {s.a.}
Majalah, Jurnal, Buletin
National Geographic 100 Big Ideas
Nasional Geographic, 2009
Buku Teks
National Geographic on Indians of the Americas / edited by Matthew W.Stirling
National Geographic Society, 1955
Buku Teks