Bertinetto, Pier Marco. 2004. On the tense-aspect system of Bolivian-Chaco Guarani. Quaderni del Laboratorio di Linguistica 5. 2005.
@article{bertinetto2004tense, author = {Bertinetto, Pier Marco}, journal = {Quaderni del Laboratorio di Linguistica}, pages = {2005}, title = {On the tense-aspect system of Bolivian-Chaco Guarani}, volume = {5}, year = {2004} }