624 DUT 20161
Dutta, B. N. Estimating and costing in civil engineering : theory and practice / by B. N. Dutta; revised by S. Dutta. - 22nd ed.. - Lucknow : S. Dutta, 1986 xi, 906p. :ill. Includes index. * Digital communication Digital electronics Telephony switching * Dutta, S., rev. * Title
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