Não informado. (1990). New Directions for Adult and Continuing Education. Jessey Bass Publishers.
Chicagoスタイル(17版)引用形式Não informado. New Directions for Adult and Continuing Education. San Francisco, Calif: Jessey Bass Publishers, 1990.
MLA(8版)引用形式Não informado. New Directions for Adult and Continuing Education. Jessey Bass Publishers, 1990.
警告: この引用は必ずしも正確ではありません.