TY  - SER
AU  - Siles Guevara, Juan.
TI  - Ascher, Marcia and Ascher, Robert. Code of the Quipu. A Study in media Mathematics and Culture. Ann Arbor. The University of Michigan Press, 1981, 166 pags
T2  - Historia y Cultura ; 
PY  - 1984///
CY  - La Paz-BO
PB  -  Don Bosco
N1  - Comentarios Bibliogr ficos
ER  -