Antzeko izenburuak: National Geographic :
- National Geographic : vol. 121, no. 3, March 1962 /
- National Geographic : vol. 121, no. 4, April 1962 /
- National Geographic : vol. 121, no. 5, May 1962 /
- National Geographic : vol. 121, no. 1, January 1962 /
- National Geographic : vol. 122, no. 2, August 1962 /
- National Geographic : vol. 119, no. 2, February 1961 /