Haslam, S. (1991). River Pollution: An Ecological Perspective. CBS colllege.
シカゴスタイル引用形Haslam, S.M. River Pollution: An Ecological Perspective. Delhi: CBS colllege, 1991.
MLA引用形式Haslam, S.M. River Pollution: An Ecological Perspective. CBS colllege, 1991.
警告: この引用は必ずしも正確ではありません.