Shahani, P.B..
Text Book of Surveying Volume II / - Second Ed. / - New Delhi-1 : Oxford & IBH Publishing Co. , 1983 - p641 :
81-204-0053-4
Surveying
D:2 / L9.2
Text Book of Surveying Volume II / - Second Ed. / - New Delhi-1 : Oxford & IBH Publishing Co. , 1983 - p641 :
81-204-0053-4
Surveying
D:2 / L9.2