TY  - GEN
AU  - IndiaThe Great Trigonometrical Survey of India
TI  - Account of the operations of the Great Trigonometrical Survey of India
U1  - 526.3 
PY  - 1890///
CY  - Dehradun
PB  - Trigonometrical Branch,Survey of India
KW  - India-Surveys
KW  - Astronomical geography
KW  - Geodetic astronomy-India
N1  - Contents:v.11:a stronomical observations for latitude mad during the period 1805 to 1885. V.12:General description of the principal triangulation of the Southern Trigon
ER  -