Piirto, J. (2011). Creativity for 21st century skills: How to embed creativity into the curriculum. SensePublishers.
Chicago-referens (17:e uppl.)Piirto, Jane. Creativity for 21st Century Skills: How to Embed Creativity into the Curriculum. Rotterdam: SensePublishers, 2011.
MLA-referens (9:e uppl.)Piirto, Jane. Creativity for 21st Century Skills: How to Embed Creativity into the Curriculum. SensePublishers, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.