Sally Burt. (2021). Cambridge Primary English Teacher's Resource 5. Cambridge Primary English.
芝加哥风格引文Sally Burt. Cambridge Primary English Teacher's Resource 5. UK: Cambridge Primary English, 2021.
MLA引文Sally Burt. Cambridge Primary English Teacher's Resource 5. Cambridge Primary English, 2021.
警告：这些引文格式不一定是100％准确.