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