By Lemkau, Paul.
México : Fondo de Cultura Económica, 1958 .
395 p

By Jewett, Frances Gulick.
Boston : Ginn and Company, 1916 .
xiv, 367 p

By Corbett, Margaret Darst.
California : Willing Publishing Company, 1951 .
95 p

By Lechuga, Guillermo.
México : DAPP, 1937 .
195 p. :

By Cueto, Marcos.
.
p. 39-74

By Belser, Julia Watts | David, Darlena | Maxwell, Jane.
California : Hesperian Foundation, 2009 .
406 p