Estes, L. S. (1999). Observation guide for Driscoll and Nagel, early childhood education, birth-8. Boston: Allyn and Bacon.
Παραπομπή Chicago StyleEstes, Linda S. Observation Guide for Driscoll and Nagel, Early Childhood Education, Birth-8. Boston: Allyn and Bacon, 1999.
Παραπομπή MLAEstes, Linda S. Observation Guide for Driscoll and Nagel, Early Childhood Education, Birth-8. Boston: Allyn and Bacon, 1999.
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