APA-čujuhus (7. p.)
Offerman, S. E. (2018). Critical materials: Underlying causes and sustainable mitigation strategies. World Scientific.
Chicago-čujuhus (17. p.)
Offerman, S. Erik. Critical Materials: Underlying Causes and Sustainable Mitigation Strategies. New Jersey: World Scientific, 2018.
MLA-čujuhus (9. p.)
Offerman, S. Erik. Critical Materials: Underlying Causes and Sustainable Mitigation Strategies. World Scientific, 2018.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.