Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service) & Clark Wortham, S. (2013). Common Characteristics and Unique Qualities in Preschool Programs: Global Perspectives in Early Childhood Education. Springer Netherlands : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service) και Sue Clark Wortham. Common Characteristics and Unique Qualities in Preschool Programs: Global Perspectives in Early Childhood Education. Dordrecht: Springer Netherlands : Imprint: Springer, 2013.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service) και Sue Clark Wortham. Common Characteristics and Unique Qualities in Preschool Programs: Global Perspectives in Early Childhood Education. Springer Netherlands : Imprint: Springer, 2013.