2012 “Languages of the Middle Andes in Areal-typological Perspective: Emphasis on Quechuan and Aymaran”. The Indigenous Languages of South America ed. by Lyle Campbell & Verónica Grondona, 575–642. Berlin: Mouton de Gruyter.
Adelaar, Willem F. H. with Pieter C. Muysken
2004The Languages of the Andes. Cambridge: Cambridge University Press.
Cobo, Bernabé
1956 [1653]Historia del Nuevo Mundo: Las obras del P. Benabé Cobo, I, II1. Madrid: BAE, Ediciones Atlas.
Gómez-Rendón, Jorge & Adelaar Willem
2009 “Loanwords in Imbabura Quechua”. Loanwords in the World’s Languages: A comparative handbook ed. by Martin Haspelmath & Uri Tadmor, 944–967. Berlin & New York: Mouton de Gruyter. Leipzig: Max Planck Institute for Evolutionary Anthropology.
Heggarty, Paul & Pearce Adrian J.
eds.2011History and Language in the Andes. London: Palgrave Macmillan.
Landerman, Peter N.
1991Quechua Dialects and their Classification. PhD dissertation, UCLA.
Parker, Gary J.
1969–1971 “Comparative Quechua Phonology and Grammar I–V”. Working Papers in Linguistics I:1.65–87 (1969); I:2.123–147 (1969); I:4.1–61 (1969); I:9.149–204 (1969); II:2.1–65 (1970); III:3.45–109 (1971), University of Hawaii, Honolulu.
Torero, Alfredo
1983 “La familia lingüística quechua”. América Latina en sus lenguas indígenas. Caracas: Monte Ávila.