Yantras or Mechanical Contrivances in Ancient India c2.17
Yantras or Mechanical Contrivances in Ancient India c2.17
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c2.17
² THORNDIKE, *op. cit.* Vol. II. p. 238.
Yantras or Mechanical Contrivances in Ancient India c2.17
² THORNDIKE, *op. cit.* Vol. II. p. 238.