- Author: Mary Ruth Wise Anna Louise Shanks (eds.)
- Language: Spanish
- Year: 2002
- Author: Mildred Larson Patricia Davis
- Language: English
- Year: 1981
![book Introducción al quichua de la sierra central del Ecuador o El quechua en diez lecciones fáciles (las otras 40 son más difíciles) = Introduction to Central Highland Quichua of Ecuador or Quichua in ten easy lessons (the other 40 are harder) [1963]](/covers/files_170/2930000/20123b78b317fc383a8888d9b2b18915-g.jpg)
- Author: Ellen M. Ross, Ricardo Asehmann (transl.)
- Language: Spanish English, Quechua
- Year: 2017
- Author: Doris Anderson Lambert Anderson
- Language: Spanish
- Year: 2016
- Author: David Weber
- Language: Quechua, Spanish
- Year: 1975