APA (7th ed.) Citation

Ward, E. M. (1970). A study of casual thinking in elementary school children. Office of Education, Bureau of Research.

Chicago Style (17th ed.) Citation

Ward, Edna M. A Study of Casual Thinking in Elementary School Children. Washington D.C: Office of Education, Bureau of Research, 1970.

MLA (9th ed.) Citation

Ward, Edna M. A Study of Casual Thinking in Elementary School Children. Office of Education, Bureau of Research, 1970.