Elements of environmental engineering
Duggal, K. N.
Elements of environmental engineering [Text] Duggal, K. N. - 5th ed. - New Delhi S. Chand 1966 - vi, 496 p. ill. 22 cm.
9788121915472
Environmental Protection Engineering
628 / DUG
Elements of environmental engineering [Text] Duggal, K. N. - 5th ed. - New Delhi S. Chand 1966 - vi, 496 p. ill. 22 cm.
9788121915472
Environmental Protection Engineering
628 / DUG