SK Ahluwalia. (2005). Environment problems in India. ABD Publishers.
シカゴスタイル引用形SK Ahluwalia. Environment Problems in India. Jaipur: ABD Publishers, 2005.
MLA引用形式SK Ahluwalia. Environment Problems in India. ABD Publishers, 2005.
警告: この引用は必ずしも正確ではありません.