Clark, M. M. (1989). Understanding research in early childhood education. Gordon and Breach.
Chicago-referens (17:e uppl.)Clark, Margaret Macdonald. Understanding Research in Early Childhood Education. New York: Gordon and Breach, 1989.
MLA-referens (9:e uppl.)Clark, Margaret Macdonald. Understanding Research in Early Childhood Education. Gordon and Breach, 1989.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.