TY  - BOOK
AU  - Dutta, B. N.
AU  - Dutta, S., rev.
TI  - Estimating and costing in civil engineering : theory and practice
U1  - 624 
PY  - 1986///
CY  - Lucknow
PB  - S. Dutta
KW  - Digital communication
KW  - Digital electronics
KW  - Telephony switching
N1  - Includes index
ER  -