David Coombs, Heidi Coombs, Robert Weber. 1976. Gramática quechua, San Mart'in. Lima: Ministerio de Educaci'on.
@book{2036_coombsetal1976,
address = {Lima},
author = {David Coombs, Heidi Coombs, Robert Weber},
publisher = {Ministerio de Educaci'on},
title = {Gramática quechua, San Mart'in},
year = {1976}
}