APA način citiranja (7. izdanje)
Crucq-Toffolo, G., & Knitel, S. Concept Code: How to Create Meaningful Concepts. BIS Publishers.
Čikaški stil citiranja (17. izdanje)
Crucq-Toffolo, Gaby, i Sanne Knitel. Concept Code: How to Create Meaningful Concepts. Amsterdam, Holanda: BIS Publishers.
MLA način citiranja (9. izdanje)
Crucq-Toffolo, Gaby, i Sanne Knitel. Concept Code: How to Create Meaningful Concepts. BIS Publishers.
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