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- E-bookNavajo Code TalkersStuart A. Kallen
- E-bookTrashing the PlanetStuart A. Kallen
- E-bookNative Peoples of the SubarcticStuart A. Kallen
- E-bookNative Peoples of the ArcticStuart A. Kallen
- E-bookWorld War II Spies and Secret AgentsStuart A. Kallen
- E-bookLocutores de claves navajos (Navajo Code Talkers)Stuart A. Kallen
- E-bookA Journey with Francisco Vázquez de CoronadoStuart A. Kallen