General report on the operations of the Great Trigonometrical Survey of India...
India.Great Trigonometrical Survey.
Calcutta : Supt. Govt. Printing,
-1878.
Description based on: 1874/75.
The Great Trigonometrical, the Topographical, and the Revenue branches of the Survey Department were amalgamated into the Survey of India on Jan. 1 1878.
India. Great Trigonometrical Survey
General report on the operations of the Survey of India