TY  - BOOK
AU  - Simms, Frederick Walter
TI  - A treatise on the principles and practice of levelling: Showing its application to purposes of rialway engineering and the construction of roads 
AV  - TA606 S55 1907
PY  - 1907///
CY  - London
PB  - C. lockwood
KW  - Carreteras
KW  - Nivelación
ER  -