Wheeler, A. and Wheeler, M. 1962. Siona Phonemics. In Elson, Benjamin (ed.), Studies in Ecuadorian Indian Languages 1, 96–111. Norman: Summer Institute of Linguistics and University of Oklahoma.
@incollection{wheeler1962, address = {Norman}, author = {Wheeler, A. and Wheeler, M.}, booktitle = {Studies in Ecuadorian Indian Languages 1}, editor = {Elson, Benjamin}, pages = {96–111}, publisher = {Summer Institute of Linguistics and University of Oklahoma}, title = {Siona Phonemics}, year = {1962} }