Cita APA (7th ed.)

Ascher, M., & Ascher, R. (1997). Mathematics of the Incas: Code of the Quipu (1a. ed.). Dover Publications.

Cita Chicago (17th ed.)

Ascher, Marcia, i Robert Ascher. Mathematics of the Incas: Code of the Quipu. 1a. ed. Nueva York: Dover Publications, 1997.

Cita MLA (9th ed.)

Ascher, Marcia, i Robert Ascher. Mathematics of the Incas: Code of the Quipu. 1a. ed. Dover Publications, 1997.