Penn, H. (2011). Policy Rationales for Early Childhood Services. International journal of child care and education policy (Seoul), 5(1), 1-16. https://doi.org/10.1007/2288-6729-5-1-1
Citace podle Chicago (17th ed.)Penn, Helen. "Policy Rationales for Early Childhood Services." International Journal of Child Care and Education Policy (Seoul) 5, no. 1 (2011): 1-16. https://doi.org/10.1007/2288-6729-5-1-1.
Citace podle MLA (9th ed.)Penn, Helen. "Policy Rationales for Early Childhood Services." International Journal of Child Care and Education Policy (Seoul), vol. 5, no. 1, 2011, pp. 1-16, https://doi.org/10.1007/2288-6729-5-1-1.
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