Urdang international. (2020). Urdang international Summer Schools. Theurdang international.
Chicagoスタイル(17版)引用形式Urdang international. Urdang International Summer Schools. London: Theurdang international, 2020.
MLA(9版)引用形式Urdang international. Urdang International Summer Schools. Theurdang international, 2020.
警告: この引用は必ずしも正確ではありません.