APA (7th ed.) Zitazioa
Punmia. B. C & Jain, A. K. (1998). Wastewater engineering: Including air pollution (2nd ed.). Laxmi Pub.
Chicago Style (17th ed.) Zitazioa
Punmia. B. C eta Arun Kumar/Jain Jain. Wastewater Engineering: Including Air Pollution. 2nd ed. Kolkata: Laxmi Pub, 1998.
MLA (9th ed.) Zitazioa
Punmia. B. C eta Arun Kumar/Jain Jain. Wastewater Engineering: Including Air Pollution. 2nd ed. Laxmi Pub, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.