![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
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- Language: Spanish
- Year: 2006
Etnias del norte
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- Author: Chantal Caillavet
- Language: Spanish
- Year: 2020
- Author: Comunidad Andina de Naciones (CAN) - Secretaría General
- Language: Spanish
- Year: 2010
- Author: J. F. Bouchard, José Ramón Iglesias Aliaga, Mercedes Guinea
- Language: Spanish
- Year: 2017
- Author: Anita Krainer, Martha Guerra
- Language: Spanish
- Year: 2016
- Author: Brooke Larson (aut.), Javier Flores Espinoza (trad.)
- Language: Spanish
- Year: 2002
- Author: Emanuelle Amodio (ed.) Madeleine Zúñiga Lucy Trapnell Helga Rothfrizt Roberto Choque Sergio Bassoli M. Napolitano Alfredo Germani Miguel Jempekat Lilyan Benítez Alicia Garcés Delva Dampaio Grizzi Aracy López de Silva Esteban Mosonyi Francisco Rengifo Isidro Huamani Emanuele Amodio et al. (auts.)
- Language: Spanish
- Year: 1989
- Author: Martin Kohlberger
- Language: English, Shiwiar
- Year: 2020
- Author: Jorge Juan, Antonio de Ulloa
- Language: Spanish
- Year: 1748