Belle Cottingham. (2021). Cambridge Lower SEcondary Maths Stage 8: Teacher's Guide. Collins.
芝加哥风格引文Belle Cottingham. Cambridge Lower SEcondary Maths Stage 8: Teacher's Guide. London: Collins, 2021.
MLA引文Belle Cottingham. Cambridge Lower SEcondary Maths Stage 8: Teacher's Guide. Collins, 2021.
警告：这些引文格式不一定是100％准确.