History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c12.s4.9
History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c12.s4.9
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v1.c12.s4.9
Brunton, E. : 1981, *Diamonds*, Nag Press Ltd. London, p.23,