00486nam a22001457a 4500 230608b |||||||| |||| 00| 0 eng d National Science Library National Science Library 620.91.001.5(1-773) M6 Energy research: / Energy Research Group Directions and issues for developing countries Canada: Energy Research Group, 1972 184p. Science Natural resources udc PR 41283 41283 0 0 udc 0 6209100151773_M6 0 61611 NSL NSL GF/Rk-12/C-15/R-4 1988-09-27 0 620.91.001.5(1-773) M6 169482 2023-06-08 00:00:00 2023-06-08 PR