Ho Peck Leng. (2017). Cambridge Primary Science Pupil's Book 4. Marshall Cavendish.
芝加哥风格引文Ho Peck Leng. Cambridge Primary Science Pupil's Book 4. Singapore: Marshall Cavendish, 2017.
MLA引文Ho Peck Leng. Cambridge Primary Science Pupil's Book 4. Marshall Cavendish, 2017.
警告：这些引文格式不一定是100％准确.