Freeman, M., & Ewan, C. (2014). Office for Learning and Teaching: SP13-3227. Office for Learning and Teaching.
芝加哥风格引文Freeman, Mark, 与 Christine Ewan. Office for Learning and Teaching: SP13-3227. Office for Learning and Teaching, 2014.
MLA引文Freeman, Mark, 与 Christine Ewan. Office for Learning and Teaching: SP13-3227. Office for Learning and Teaching, 2014.
警告：这些引文格式不一定是100％准确.
