Berger, A. (2015). Validating analytic rating scales: A multi-method approach to scaling descriptors for assessing academic speaking. Peter Lang.
芝加哥风格引文Berger, Armin. Validating Analytic Rating Scales: A Multi-method Approach to Scaling Descriptors for Assessing Academic Speaking. Frankfurt am Main ; New York: Peter Lang, 2015.
MLA引文Berger, Armin. Validating Analytic Rating Scales: A Multi-method Approach to Scaling Descriptors for Assessing Academic Speaking. Peter Lang, 2015.
警告：这些引文格式不一定是100％准确.