Jagdish Sing. (2009). Paryavaran evam samvikas. Radha Publications.
シカゴスタイル引用形Jagdish Sing. Paryavaran Evam Samvikas. New Delhi: Radha Publications, 2009.
MLA引用形式Jagdish Sing. Paryavaran Evam Samvikas. Radha Publications, 2009.
警告: この引用は必ずしも正確ではありません.