Ashby M.F & CORE-Materials. Materials for Springs.
Chicago-čujuhus (17. p.)Ashby M.F juo CORE-Materials. Materials for Springs.
MLA-čujuhus (9. p.)Ashby M.F juo CORE-Materials. Materials for Springs.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.