Cita APA (7th ed.)
Sivakumar, R., & Fegan, S. C. (2005). Introduction to environmental science and engineering (4th ed.). Vijay Nicole Imprints.
Cita Chicago (17th ed.)
Sivakumar, Raman, i Sophia Chung Fegan. Introduction to Environmental Science and Engineering. 4th ed. Chennai: Vijay Nicole Imprints, 2005.
Cita MLA (9th ed.)
Sivakumar, Raman, i Sophia Chung Fegan. Introduction to Environmental Science and Engineering. 4th ed. Vijay Nicole Imprints, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.