http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Các máy gia công vật liệu rắn và dẻo.T.1
Vật liệu máy gia công--Gia công vật liệu--Vật liệu rắn dẻo