  We present numerical results (including full one-loop QCD corrections) for
the processes p p-bar and pp -> W+ W-, W+/- Z/gamma* and Z/gamma* Z/gamma*
followed by the decay of the massive vector bosons into leptons. In addition to
their intrinsic importance as tests of the standard model, these processes are
also backgrounds to conjectured non-standard model processes. Because of the
small cross sections at the Tevatron, full experimental control of these
backgrounds will be hard to achieve. This accentuates the need for up-to-date
theoretical information. A comparison is made with earlier work and cross
section results are presented for p p-bar collisions at sqrt{s}=2 TeV and pp
collisions at sqrt{s}=14 TeV. Practical examples of the use of our calculations
are presented.
