Bengali Keyboard
Duggall, K. N.
Elements of environmental engineering / K. N. Duggall. - 5th ed. - New Delhi : S. Chand & Co., c1966 [Reprinted 2000]. - xx, 496 pages : illustrations ; 22 cm.
Includes bibliographical references and index.
8121915473
Environmental engineering.
628 DUG
Elements of environmental engineering / K. N. Duggall. - 5th ed. - New Delhi : S. Chand & Co., c1966 [Reprinted 2000]. - xx, 496 pages : illustrations ; 22 cm.
Includes bibliographical references and index.
8121915473
Environmental engineering.
628 DUG