Não informado. (1952). Adult leadership. Adult Education Association of the United States of America.
Chicagoスタイル(17版)引用形式Não informado. Adult Leadership. Washington: Adult Education Association of the United States of America, 1952.
MLA(8版)引用形式Não informado. Adult Leadership. Adult Education Association of the United States of America, 1952.
警告: この引用は必ずしも正確ではありません.