Inventors who revolutionised our lives /

Gopalakrishnan, K.V.

Inventors who revolutionised our lives / K.V. Gopalakrishnan. - 1st ed. - New Delhi : National book, 1999. - xi, 152 p. ; 20 cm.

8123726686 : (Rs. 35/-)


Inventors--Biography.
Revolutionists--Biography.
Art and science--Inventions.

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