Rosbottom, Harry. 1968. Phonemes Of The Guaraní Language. Linguistics 6. 109-113. Berlin, New York: Walter de Gruyter.
http://www.degruyter.com/view/j/ling.1968.6.issue-41/ling.1968.6.41.109/ling.1968.6.41.109.xml
@article{71311, address = {Berlin, New York}, author = {Rosbottom, Harry}, journal = {Linguistics}, number = {41}, pages = {109-113}, publisher = {Walter de Gruyter}, title = {Phonemes Of The Guaraní Language}, url = {http://www.degruyter.com/view/j/ling.1968.6.issue-41/ling.1968.6.41.109/ling.1968.6.41.109.xml}, volume = {6}, year = {1968} }