APA aipamena

METCULF & EDDY. (1979). WASTE WATER ENGINEERING. TATA MCGRAW.

Chicago Style aipamena

METCULF & EDDY. WASTE WATER ENGINEERING. TATA MCGRAW, 1979.

MLA aipamena

METCULF & EDDY. WASTE WATER ENGINEERING. TATA MCGRAW, 1979.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.