Arithmetic in Maya /
Sánchez, George I.
Arithmetic in Maya / George I. Sánchez. - Austin, Tex. : G. I. Sánchez, 1961. - 74 p. : il.
MATEMATICAS MAYAS
Arithmetic in Maya / George I. Sánchez. - Austin, Tex. : G. I. Sánchez, 1961. - 74 p. : il.
MATEMATICAS MAYAS