Challen, S. (2014). Measuring change in immigration policy. LFB Scholarly Pub. LLC.
芝加哥风格引文Challen, Suzanna. Measuring Change in Immigration Policy. El Paso: LFB Scholarly Pub. LLC, 2014.
MLA引文Challen, Suzanna. Measuring Change in Immigration Policy. LFB Scholarly Pub. LLC, 2014.
警告：这些引文格式不一定是100％准确.