Santosh Aggarwal. (1991). Three language formula: An educational problem. Jnan.
シカゴスタイル引用形Santosh Aggarwal. Three Language Formula: An Educational Problem. New Delhi: Jnan, 1991.
MLA引用形式Santosh Aggarwal. Three Language Formula: An Educational Problem. Jnan, 1991.
警告: この引用は必ずしも正確ではありません.