APA Style
Ltd, Y, S, P. (2019).
The Young Scientist 186 Level 1: Coughs are irritating! (1st edition).
Singapore:
Young Scientists.
MLA Style
Ltd, Young, Scientist, Pte.
"The Young Scientist 186 Level 1: Coughs are irritating!".
1st edition
Singapore:
Young Scientists,
2019.
Textbook.