TY  - BOOK
AU  - Duggal, S K
TI  - Surveying And Levelling
PY  - 2008///
CY  - New Delhi
PB  - Tata McGraw-Hill Education Private Limited
KW  - Sureying and Levelling
N2  - Surveying,and,Levelling,Sureying and Levelling
ER  -