APA aipamena

ELANGOVAN R. (1997). UNIT OPERATIONS IN ENVIRONMENTAL ENGINEERING. NEW-AGE INTERNATIONAL.

Chicago Style aipamena

ELANGOVAN R. UNIT OPERATIONS IN ENVIRONMENTAL ENGINEERING. NEW DELHI: NEW-AGE INTERNATIONAL, 1997.

MLA aipamena

ELANGOVAN R. UNIT OPERATIONS IN ENVIRONMENTAL ENGINEERING. NEW-AGE INTERNATIONAL, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.