Author: M. Azizul Haque, Khan Bahadur
Publisher:Khan Bahadur M. Azizul Huque, Krishnagar
Copyright:1931
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Publisher:Oxford University Press, Calcutta
Copyright:1931
Author:
Publisher:National Council of Science Museums, Kolkata
Copyright:2014
Author:
Publisher:Nehru Science Centre-National Council of Science Museums, Mumbai
Copyright:2009
Author: Mayhew, Arthur
Publisher:Faber and Gwyer, London
Copyright:1925
Author: Kendall, Patricia
Publisher:Charles Scribner's, New York
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Publisher:National Council of Science Museums, Mumbai
Copyright:2014
Author: Prasad, Bimal
Publisher:Manohar Publishers and Distributors, New Delhi
Copyright:2009
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Publisher:National Archives of India, New Delhi
Copyright:2009
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Publisher:Nehru Science Centre-National Council of Science Museums, Mumbai
Copyright:2014
Author: Palat, Madhavan K.
Publisher:Jawaharlal Nehru Memorial Fund, New Delhi
Copyright:2014
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Publisher:Jawaharlal Nehru Memorial Fund, New Delhi
Copyright:2014
Author: Palat, Madhavan K.
Publisher:Jawaharlal Nehru Memorial Fund, New Delhi
Copyright:2014
Author: Palat, Madhavan K.
Publisher:Jawaharlal Nehru Memorial Fund, New Delhi
Copyright:2014