Ason, A. (2022). International gas contracts. Oxford Institute for Energy Studies.
Chicago-čujuhus (17. p.)Ason, A. International Gas Contracts. Oxford Institute for Energy Studies, 2022.
MLA-čujuhus (9. p.)Ason, A. International Gas Contracts. Oxford Institute for Energy Studies, 2022.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.