Author:
Publisher:Nehru Science Centre-National Council of Science Museums, Mumbai
Copyright:2009
Author: Mayhew, Arthur
Publisher:Faber and Gwyer, London
Copyright:1925
Author: Prasad, Bimal
Publisher:Manohar Publishers and Distributors, New Delhi
Copyright:2009
Author:
Publisher:National Archives of India, New Delhi
Copyright:2009
Author: Mukherjee, Mridula
Publisher:Jawaharlal Nehru Memorial Fund, New Delhi
Copyright:2009
Author: Hamilton, Clayton
Publisher:Grant Richards, London
Copyright:1910
Author: शास्त्री, हरगोविंद वर्मा, आचार्य बदरीनाथ
Publisher:चौखम्भा संस्कृत सीरीज, वाराणसी
Copyright:2009