Duggal, K.N
Elements of environmental engineering - 1st ed. - New Delhi S. Chand 1998 - vi, 496p.
Includes index.
81-219-1547-3
Environmental engineering
Water supply
Sewage treatment
Environmental sanitation
628 / DUG/E
Elements of environmental engineering - 1st ed. - New Delhi S. Chand 1998 - vi, 496p.
Includes index.
81-219-1547-3
Environmental engineering
Water supply
Sewage treatment
Environmental sanitation
628 / DUG/E