(1991). Predictive validity of the Phelps Kindergarten Readiness Scale / by Rita Cardetti Esterly.
Čikaški stil citiranja (17. izdanje)Predictive Validity of the Phelps Kindergarten Readiness Scale / by Rita Cardetti Esterly. 1991.
MLA način citiranja (9. izdanje)Predictive Validity of the Phelps Kindergarten Readiness Scale / by Rita Cardetti Esterly. 1991.
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