Water supply and sanitary engineering :
Singh, Gurcharan.
Water supply and sanitary engineering : environmental engineering / Gurcharan Singh, Jagdish Singh. - 4th ed. - India : Standard Pub. , c1996. - 512 p. : ill. ; 18 cm.
Environmental engineering.
628 / SIW
Water supply and sanitary engineering : environmental engineering / Gurcharan Singh, Jagdish Singh. - 4th ed. - India : Standard Pub. , c1996. - 512 p. : ill. ; 18 cm.
Environmental engineering.
628 / SIW