Mitchell, J. (2005). Personal commentary. Oxford Institute for Energy Studies.
Chicago-čujuhus (17. p.)Mitchell, J. Personal Commentary. Oxford Institute for Energy Studies, 2005.
MLA-čujuhus (9. p.)Mitchell, J. Personal Commentary. Oxford Institute for Energy Studies, 2005.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.