APA Style

Ltd, Y, S, P. (2019). The Young Scientist 187 Level 3: Why does the moon appear in the day (1st edition). Singapore: Young Scientists.

MLA Style

Ltd, Young, Scientist, Pte. "The Young Scientist 187 Level 3: Why does the moon appear in the day". 1st edition Singapore: Young Scientists, 2019. Textbook.