McGregor, William B. 2006. Focal and optional ergative marking in Warrwa (Kimberley, Western Australia). Lingua 116. 393-423.
@article{sinnemakizeromarking-McGregor2006, author = {McGregor, William B.}, journal = {Lingua}, pages = {393-423}, title = {Focal and optional ergative marking in Warrwa (Kimberley, Western Australia)}, volume = {116}, year = {2006} }