00422nam a22001337a 4500 230615b |||||||| |||| 00| 0 eng d National Science Library National Science Library 621.365:69(082.2) L1 Conference on electrical heating in buildings London: The Institution of Electrical Engineers, 1971 123p. Conference udc PR 43817 43817 0 0 udc 0 621365690822_L1 0 66252 NSL NSL GF/Rk-13/C-2/R-3 1971-07-27 0 621.365:69(082.2) L1 35475 2023-06-15 00:00:00 1971-07-01 PR