ebrary, Inc, Wratil, M., & Gallmann, P. (2011). Null pronouns. De Gruyter Mouton.
Chicago Style (17th ed.) Citationebrary, Inc, Melani Wratil, and Peter Gallmann. Null Pronouns. Berlin ; Boston: De Gruyter Mouton, 2011.
MLA (9th ed.) Citationebrary, Inc, et al. Null Pronouns. De Gruyter Mouton, 2011.
Warning: These citations may not always be 100% accurate.