Singapur Curriculum Planning & Development Division. (2022). Social studies: Normal (technical) (First published.). Hodder Education.
Chicago-Zitierstil (17. Ausg.)Singapur Curriculum Planning & Development Division. Social Studies: Normal (technical). First published. London: Hodder Education, 2022.
MLA-Zitierstil (9. Ausg.)Singapur Curriculum Planning & Development Division. Social Studies: Normal (technical). First published. Hodder Education, 2022.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.