United States. Office of Child Development & Grotberg, E. H. (1977). 200 years of children. U.S. Dept. of Health, Education, and Welfare, Office of Human Development, Office of Child Development.
Citace podle Chicago (17th ed.)United States. Office of Child Development a Edith Henderson Grotberg. 200 Years of Children. [Washington]: U.S. Dept. of Health, Education, and Welfare, Office of Human Development, Office of Child Development, 1977.
Citace podle MLA (8th ed.)United States. Office of Child Development a Edith Henderson Grotberg. 200 Years of Children. U.S. Dept. of Health, Education, and Welfare, Office of Human Development, Office of Child Development, 1977.
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