Παραπομπή σε μορφή APA (7η εκδ.)

Wardle, F. (2009). Approaches to early childhood and elementary education. Nova Science Publishers, Inc..

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wardle, Francis. Approaches to Early Childhood and Elementary Education. New York: Nova Science Publishers, Inc., 2009.

Παραπομπή σε μορφή MLA (9th εκδ.)

Wardle, Francis. Approaches to Early Childhood and Elementary Education. Nova Science Publishers, Inc., 2009.