Hernǹdez David & Canal AWSOnline / YouTube. Teaching the science of welding.
Chicago-čujuhus (17. p.)Hernǹdez David juo Canal AWSOnline / YouTube. Teaching the Science of Welding.
MLA-čujuhus (9. p.)Hernǹdez David juo Canal AWSOnline / YouTube. Teaching the Science of Welding.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.