Record is of genre <book>
| author: | Bybee, Joan L. and Perkins, Revere and Pagliuca, William |
| year: | 1994 |
| title: | The evolution of grammar: Tense, aspect and modality in the languages of the world |
| city: | Chicago |
| publisher: | The University of Chicago Press |
| record URL: | http://wals.info/refdb/record/Bybee-et-al-1994 |
| related languages |
