@book{
  author = "Sorge, Friedrich A. (Friedrich Adolf), 1828-1906, Foner, Philip Sheldon, 1910-",
  title = "Friedrich A. Sorge's Labor movement in the United States : a history of the American working class from colonial times to 1890",
  year: 1977
  key = "Labor and laboring classes--United States--History",
  key = "Trade-unions--United States--History",
  publisher = "Greenwood Press",
  address = "Westport, Conn.",
  series = "Contributions in economics and economic history ; no. 15",
  ISSN/ISBN = "9780837190280 [0837190282]",
}