00464nam a2200157Ia 4500 190328s9999||||xx |||||||||||||| ||und|| 69-12757 NITIL NITIL 21st 621.30973 S764T Sporn, Philip Technology, engineering and economics Philip Sporn Massachusetts MIT Press 1969 xii, 148p. Engineering; Technological innovations; Electric power BKS 26125 26125 0 0 DDC 0 0 NITIL NITIL 2019-04-03 0 621.30973 S764T 72362 2019-04-03 00:00:00 2019-04-03 BKS