APA-čujuhus (7. p.)

Hurens Patrick & International Copper Study Group. Sustainable development of the copper sector, a global view.

Chicago-čujuhus (17. p.)

Hurens Patrick juo International Copper Study Group. Sustainable Development of the Copper Sector, a Global View.

MLA-čujuhus (9. p.)

Hurens Patrick juo International Copper Study Group. Sustainable Development of the Copper Sector, a Global View.

Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.