Kuppuram G & Kumudamani K. (1990). History of science and technology in India (v.6: Metals and metal technology). Sundeep.
Dyfyniad Arddull ChicagoKuppuram G and Kumudamani K. History of Science and Technology in India (v.6: Metals and Metal Technology). Delhi: Sundeep, 1990.
Dyfyniad MLAKuppuram G and Kumudamani K. History of Science and Technology in India (v.6: Metals and Metal Technology). Sundeep, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.