@inbook {, title = {El acceso a recursos naturales de diferentes ecolog{\'\i}as en la sierra ecuatoriana. Siglo XVI.}, booktitle = {Contribuci{\'o}n a la etnohistoria ecuatoriana}, series = {Colecci{\'o}n Pendoneros}, volume = {20}, year = {1981}, note = {Salt quarry colonies in the lowlands}, pages = {406}, publisher = {Instituto Otavale{\~n}o de Antropolog{\'\i}a}, organization = {Instituto Otavale{\~n}o de Antropolog{\'\i}a}, edition = {2}, address = {Otavalo, Ecuador}, keywords = {Ecuador History To 1809., Indians of South America Ecuador History.}, author = {Oberem, Udo}, editor = {Moreno Y{\'a}{\~n}ez, Segundo and Oberem, Udo} }