AGOR, R.
A text book of surveying & leveling - 4th ed. - Delhi Khanna 1987 - xvi, 960 p.
162509
Surveying
526.9 / AGO
A text book of surveying & leveling - 4th ed. - Delhi Khanna 1987 - xvi, 960 p.
162509
Surveying
526.9 / AGO