Citazione Stile APA (7a Edizione)

Singapur Curriculum Planning & Development Division. (2021). Social studies: Normal (technical) (First published.). Hodder Education.

Citazione stile Chigago Style (17a edizione)

Singapur Curriculum Planning & Development Division. Social Studies: Normal (technical). First published. London: Hodder Education, 2021.

Citatione MLA (9a ed.)

Singapur Curriculum Planning & Development Division. Social Studies: Normal (technical). First published. Hodder Education, 2021.