APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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