Não informado. (1950). Adult Education. American Association for Adult & Continuing Education.
Chicagoスタイル(17版)引用形式Não informado. Adult Education. Chapel Hill, NC: American Association for Adult & Continuing Education, 1950.
MLA(8版)引用形式Não informado. Adult Education. American Association for Adult & Continuing Education, 1950.
警告: この引用は必ずしも正確ではありません.