By Tadanki Venkata Lakshmi Narasimha Rao
By John Holt
By P.V.R.K.Prasad
By Paul De Kruif And Translated By Jammi Koneti Rao
By Carl Sagan And Translated By V.Srinivasa Chakravarthy
By Sujatha Velpuri
By Paramanandayya
By Bhimeswarao Vemavarapu
By K B Gopalam
By Aavatapalli Narayana Rao
By Rasaraju
By Azad
By Dr Chaganti Surya Narayana Murty
By Rachapalem Chandra Shakarareddy
By Simha Prasad
By Adapa Chiranjeevi
By Karlapalem Hanumantarao
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