APA aipamena

METCALF,EDDY. (1979). WESTE WATER ENGG. TREATMENT DISPOSAL REFUSAL. TMH.

Chicago Style aipamena

METCALF,EDDY. WESTE WATER ENGG. TREATMENT DISPOSAL REFUSAL. TMH, 1979.

MLA aipamena

METCALF,EDDY. WESTE WATER ENGG. TREATMENT DISPOSAL REFUSAL. TMH, 1979.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.