Clingendael International Energy Programme. Geopolitics and natural gas.
Chicago-čujuhus (17. p.)Clingendael International Energy Programme. Geopolitics and Natural Gas.
MLA-čujuhus (9. p.)Clingendael International Energy Programme. Geopolitics and Natural Gas.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.