ISBN 9781286272510 books & textbook
Astronomical Observations For Latitude Made During The Period 1885 To 1905 And The Deduced Values Of The Deflections Of The Plumb-line
Fisher, Osmond Survey of India Trigonometrical Branch
Nabu Press /2012-04-21 Paperback / 658 Pages
isbn-10: 1286272513 / isbn-13: 9781286272510
