Não informado. (1963). Education abstracts. American College Public Relations Association.
Chicagoスタイル(17版)引用形式Não informado. Education Abstracts. Washington: American College Public Relations Association, 1963.
MLA(8版)引用形式Não informado. Education Abstracts. American College Public Relations Association, 1963.
警告: この引用は必ずしも正確ではありません.