Singh,R.P, & Zubairul Islam. (2012). Environmental studies. Concept Publishing Co.Pvt Ltd.
シカゴスタイル引用形Singh,R.P, , Zubairul Islam. Environmental Studies. New Delhi: Concept Publishing Co.Pvt Ltd, 2012.
MLA引用形式Singh,R.P, , Zubairul Islam. Environmental Studies. Concept Publishing Co.Pvt Ltd, 2012.
警告: この引用は必ずしも正確ではありません.