APA

National Society for the Study of Education, . (1922). Fourth report of the committee on economy time in education. Bloomington: Public School Pub., Co.

Chicago

National Society for the Study of Education, . 1922. Fourth report of the committee on economy time in education. Bloomington: Public School Pub., Co.

Harvard

National Society for the Study of Education, . (1922). Fourth report of the committee on economy time in education. Bloomington: Public School Pub., Co.

MLA

National Society for the Study of Education, . Fourth report of the committee on economy time in education. Bloomington: Public School Pub., Co. 1922.