APA (7th ed.) Zitazioa
Bhargava, S. K. (2009). Practical methods for water and air pollution monitoring. New Age International (P) Ltd..
Chicago Style (17th ed.) Zitazioa
Bhargava, S. K. Practical Methods for Water and Air Pollution Monitoring. New Delhi: New Age International (P) Ltd., 2009.
MLA (9th ed.) Zitazioa
Bhargava, S. K. Practical Methods for Water and Air Pollution Monitoring. New Age International (P) Ltd., 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.