Murra, J. 1948. The Cayapa and Colorado. Bulletins of the Bureau of American Ethnology 143. 277-291.
@article{murra1948, address = {Washington 1946-1950}, author = {Murra, J.}, journal = {Bulletins of the Bureau of American Ethnology}, key = {Murra (1948)}, number = {4}, pages = {277-291}, title = {The Cayapa and Colorado}, volume = {143}, year = {1948} }