TY  - BOOK
AU  - Pickels,George Wellington
AU  - Wiley, Carroll Carson
TI  - Route surveying
AV  - TA549 P5
PY  - 1954///, c1949
CY  - New York
PB  - J. Wiley
KW  - Topografía
KW  - Ferrocarriles
KW  - Topografia
ER  -