APA aipamena

Langit, R. B. (1997). Water from polluted rivers to be recycled for drinking. Manila Times.

Chicago Style aipamena

Langit, Richel B. "Water from Polluted Rivers to Be Recycled for Drinking." Manila Times 1997.

MLA aipamena

Langit, Richel B. "Water from Polluted Rivers to Be Recycled for Drinking." Manila Times, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.