DIRECTING LEARNING IN THE ELEMENTARY SCHOOL
WALTER S. MONROE AND RUTH STREITZ1932 年出版480 页ISBN：
ELEMENTARY LABORATORY EXPERIMENTS IN ORGANIC CHEMISTRY
ROGER ADAMS AND JOHN R. JOHNSON1929 年出版304 页ISBN：
EDUCATION FOR CITIZENSHIP IN ELEMENTARY SCHOOLS
THE ASSOCIATION FOR EDUCATION IN CITIZENSHIP1939 年出版316 页ISBN：
