TY  - BOOK
AU  - Wirshing, James R.
AU  - Wirshing, Roy H.
TI  - Schaum's outline of theory and problems of introductory surveying
SN  - 9780070588844
U1  - 526.9 
PY  - 1985///
CY  - New Delhi
PB  - Tata Mcgraw-Hill
KW  - Mathematical geography
KW  - Allied sciences
KW  - Topographic survey
KW  - Construction surveys
KW  - Earthwork
KW  - Drowing Maps
ER  -