?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Higginson%2C+John&rft.aulast=Higginson&rft.aufirst=John&rft.date=1989&rft.btitle=A+Working+Class+in+the+Making%2C+Belgian+Colonial+Labor+Policy+and+the+African+Mineworker%2C+1907-1951&rft.genre=book