United State. Department of Health, E. a. W. (1972). Educaton Directory.
シカゴスタイル引用形United State. Department of Health, Eduaction and Welfare. Educaton Directory. Washington, 1972.
MLA引用形式United State. Department of Health, Eduaction and Welfare. Educaton Directory. 1972.
警告: この引用は必ずしも正確ではありません.