?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Northrup%2C+David&rft.aulast=Northrup&rft.aufirst=David&rft.date=1988&rft.btitle=Beyond+the+Bend+in+the+River.+African+Labor+in+Eastern+Za%C3%AFre%2C+1865-1940&rft.genre=book