Arctic Area : indigenous period

Antzeko izenburuak

• Guianas : indigenous period
  nork: Rouse, Irving
  Argitaratua: (1953)
• Origins : indigenous period
  nork: Wormington, Hannah M.
  Argitaratua: (1953)
• United States and Canada : indigenous period
  nork: Griffin, James B.
  Argitaratua: (1953)
• El área no irrigada
  nork: Capitanelli, Ricardo
• El Área fundacional
  nork: Lacoste, Pablo