APA aipamena

U.S. Environmental Protection Agency. Introduction to the national pretreatment program.

Chicago Style aipamena

U.S. Environmental Protection Agency. Introduction to the National Pretreatment Program.

MLA aipamena

U.S. Environmental Protection Agency. Introduction to the National Pretreatment Program.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.