Bybee et al. 1994

Bybee, Joan L. and Perkins, Revere and Pagliuca, William. 1994. The evolution of grammar: Tense, aspect, and modality in the languages of the world. Chicago: University of Chicago Press.

@book{195,
  address   = {Chicago},
  author    = {Bybee, Joan L. and Perkins, Revere and Pagliuca, William},
  booktitle = {The evolution of grammar: Tense, aspect, and modality in the languages of the world},
  key       = {Bybee et al. 1994},
  publisher = {University of Chicago Press},
  title     = {The evolution of grammar: Tense, aspect, and modality in the languages of the world},
  type      = {Bibliographical record},
  url       = {https://books.google.de/books?id=aOvU6m-f1IwC},
  year      = {1994}
}