TY  - BOOK
AU  - Duggal, S. K. 
TI  - Surveying Vol-1
SN  - 0070151377
U1  - 526.9  
PY  - 2009///
CY  - New Delhi
PB  - Tata McGraw Hill
KW  - Surveying
N1  - vol-1; Includes bibliographical references
ER  -