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Posted on: 3 January 2014
Digital Rare Book:
History of the Calendar - In different countries through the ages
By Professor Meghnad Saha and N.C. Lahiri
Published by Council for Scientific & Industrial Research, New Delhi - 1992
Read Book Online:
http://bit.ly/1e08DzC
Download pdf book:
http://bit.ly/192hByS
Ganitacharya Nirmal Chandra Lahiri always helped me calculate difficult types of ephemerides, ascension/declination into zodiacal longitude in astronomical calculation whenever I went to his Sukea St residence. All manualy, in 1975 there was no computer. I revered him like Ganesh.