| Trails West [texto impreso] / National Geographic Society (U.S.). Special Publications Division , Autor . - Washington, DC : National Geographic Society , 1979 . - 207 p. : ill. ; 26 cm.ISBN  : 978-0-87044-272-8 Bibliography: p. 207.  Includes index.  The Santa Fe Trail: Simmons, M. Highway of commerce.--The Oregon  Trail: Stegner, W. Road to destiny.--The Mormon Trail: McCarry, C.  Marching to Zion.--The California Trail: Laxalt, R. To the rainbow's  end.--The Gila Trail: Dedera, D. Pathway in the desert.--The Boseman  Trail: Haba, L. North from the Platte. |  |