Gaya APA
Welch, E., Lindell, T. (1992).
Ecological effects of wastewater : applied limnology and pollutant effects .
London:
E and FN Spon.
Gaya MLA
Welch, E.B.., Lindell, T..
"Ecological effects of wastewater : applied limnology and pollutant effects".
London:
E and FN Spon,
1992.
Text.