Dyfyniad APA
Werner, V., Seoane, E., & Su�arez G�omez, C. (2016). Re-assessing the present perfect. De Gruyter Mouton.
Dyfyniad Arddull Chicago
Werner, Valentin, Elena Seoane, and Cristina Su�arez G�omez. Re-assessing the Present Perfect. Berlin, [Germany] ; Boston, Massachusetts: De Gruyter Mouton, 2016.
Dyfyniad MLA
Werner, Valentin, et al. Re-assessing the Present Perfect. De Gruyter Mouton, 2016.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.