APA

Hyman Blumberg Symposium on Research in Early Childhood Education, Hyman Blumberg Symposium on Research in Early Childhood Education, Hyman Blumberg Symposium on Research in Early Childhood Education & Webb R. A. (1977). Social development in childhood: day-care programs and research. Baltimore: Johns Hopkins University Press.

Chicago

Hyman Blumberg Symposium on Research in Early Childhood Education, Hyman Blumberg Symposium on Research in Early Childhood Education, Hyman Blumberg Symposium on Research in Early Childhood Education and Webb Roger A. 1977. Social development in childhood: day-care programs and research. Baltimore: Johns Hopkins University Press.

Harvard

Hyman Blumberg Symposium on Research in Early Childhood Education, Hyman Blumberg Symposium on Research in Early Childhood Education, Hyman Blumberg Symposium on Research in Early Childhood Education and Webb R. A. (1977). Social development in childhood: day-care programs and research. Baltimore: Johns Hopkins University Press.

MLA

Hyman Blumberg Symposium on Research in Early Childhood Education, Hyman Blumberg Symposium on Research in Early Childhood Education, Hyman Blumberg Symposium on Research in Early Childhood Education and Webb Roger A. Social development in childhood: day-care programs and research. Baltimore: Johns Hopkins University Press. 1977.