@book{
  author = "安藤, 精一(1922-)",
  title = "溶接材料",
  year: 1980
  month: 1
  key = "溶接",
  publisher = "産報出版",
  address = "東京",
  edition = "特装セット版",
  series = "現代溶接技術大系 ; 第5巻",
}