Tohutoro APA (7th ed.)
Sivakumar, R., & Fegan, S. C. (2005). Introduction to environmental science and engineering (4th ed.). Vijay Nicole Imprints.
Tohutoru Kātū Chicago (17th ed.)
Sivakumar, Raman, me Sophia Chung Fegan. Introduction to Environmental Science and Engineering. 4th ed. Chennai: Vijay Nicole Imprints, 2005.
Tohutoro MLA (9th ed.)
Sivakumar, Raman, me Sophia Chung Fegan. Introduction to Environmental Science and Engineering. 4th ed. Vijay Nicole Imprints, 2005.
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