Eckardt, R. (2013). Beyond 'Any' and 'Ever': New explorations in negative polarity sensitivity. De Gruyter.
芝加哥风格引文Eckardt, Regine. Beyond 'Any' and 'Ever': New Explorations in Negative Polarity Sensitivity. Berlin: De Gruyter, 2013.
MLA引文Eckardt, Regine. Beyond 'Any' and 'Ever': New Explorations in Negative Polarity Sensitivity. De Gruyter, 2013.
警告：这些引文格式不一定是100％准确.