Mason, C. Russell
The art and science of protective relaying - New York John Wiley 1956 - xiv, 410 p. ill. 27 cm.
1 USD = 159.85 LKR as at 29/06/2018
$ 106.21 = Rs. 16,977.66
Electric relays
621.317 / MAS
The art and science of protective relaying - New York John Wiley 1956 - xiv, 410 p. ill. 27 cm.
1 USD = 159.85 LKR as at 29/06/2018
$ 106.21 = Rs. 16,977.66
Electric relays
621.317 / MAS