Henry, N. B. (1943). The forty-second yearbook: Of the National Society for the Study of Education. Chicago: Department of Education.
Παραπομπή Chicago StyleHenry, Nelson B. The Forty-second Yearbook: Of the National Society for the Study of Education. Chicago: Department of Education, 1943.
Παραπομπή MLAHenry, Nelson B. The Forty-second Yearbook: Of the National Society for the Study of Education. Chicago: Department of Education, 1943.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.