Canal Leonardo ENERGY / YouTube. U.S. Energy Efficiency Policies.
Chicago-čujuhus (17. p.)Canal Leonardo ENERGY / YouTube. U.S. Energy Efficiency Policies.
MLA-čujuhus (9. p.)Canal Leonardo ENERGY / YouTube. U.S. Energy Efficiency Policies.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.