Rao, P. V. (2006). Principles of environmental science and engineering. Prentice-Hall of India.
シカゴスタイル引用形Rao, P. Venugopala. Principles of Environmental Science and Engineering. New Delhi: Prentice-Hall of India, 2006.
MLA引用形式Rao, P. Venugopala. Principles of Environmental Science and Engineering. Prentice-Hall of India, 2006.
警告: この引用は必ずしも正確ではありません.