Essa, E. (2011). Introduction to early childhood education (6th ed.). Wadsworth Cengage Learning.
Citace podle Chicago (17th ed.)Essa, Eva. Introduction to Early Childhood Education. 6th ed. Belmont, Calif: Wadsworth Cengage Learning, 2011.
Citace podle MLA (9th ed.)Essa, Eva. Introduction to Early Childhood Education. 6th ed. Wadsworth Cengage Learning, 2011.
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