APA način citiranja (7. izdanje)

(2005). Constructivist foundations: CF. Vrije University.

Čikaški stil citiranja (17. izdanje)

Constructivist Foundations: CF. Brussels, Belgium: Vrije University, 2005.

MLA način citiranja (9. izdanje)

Constructivist Foundations: CF. Vrije University, 2005.