Fiona Baxter; Liz Dilley; Alan Cross; Jon Board. (2014). Cambridge Primary Science Stage 4 Learner's Book. CAMBRIDGE UNIVERSITY PRESS.
芝加哥风格引文Fiona Baxter; Liz Dilley; Alan Cross; Jon Board. Cambridge Primary Science Stage 4 Learner's Book. CAMBRIDGE UNIVERSITY PRESS, 2014.
MLA引文Fiona Baxter; Liz Dilley; Alan Cross; Jon Board. Cambridge Primary Science Stage 4 Learner's Book. CAMBRIDGE UNIVERSITY PRESS, 2014.
警告：这些引文格式不一定是100％准确.