  A measurement of the cross section for production of single, isolated photons
is reported for transverse energies in the range of 10-125 GeV, for two regions
of pseudorapidity, |\eta|<0.9 and 1.6<|\eta|<2.5. The data represent 12.9 pb-1
of integrated luminosity accumulated in p-pbar collisions at sqrt{s} = 1.8 TeV
and recorded with the D0 detector at the Fermilab Tevatron Collider.
