Não informado. (1930). Journal of School Health. American School Health Association.
Chicagoスタイル(17版)引用形式Não informado. Journal of School Health. Kent, Ohio: American School Health Association, 1930.
MLA(8版)引用形式Não informado. Journal of School Health. American School Health Association, 1930.
警告: この引用は必ずしも正確ではありません.