Rosbottom, Harry. 1961. Different-level tense markers in Guaraní. International Journal of American Linguistics 27. 345-52.
@article{136756, author = {Rosbottom, Harry}, journal = {International Journal of American Linguistics}, pages = {345-52}, title = {Different-level tense markers in Guaraní}, volume = {27}, year = {1961} }