00683nac a22001931u 4500 8185749760 (pbk.) 628.1 LAL 9530 9530 Lal, D. Water supply and waste water engineering / D. Lal; A. K. Upadhyay Delhi : S. K. Kataria, 2001. c2001. Various p. : ill. ; 24 cm. Distributer: Al-Ahram Catalogued by: Sara Water-supply engineering. Upadhyay, A. K. BB 628.1LAL 9530 9530 0 0 0 0 MAIN MAIN 1ST 2008-05-20 Purchase 2 28 628.1LAL 000011505 2025-07-15 00:00:00 2014-11-13 BB