We report on measurements of the Upsilon(1S), Upsilon(2S), and Upsilon
(3S) differential, (d(2) sigma/dP(t)dy)(y=0), and integrated cross sec
tions in p (p) over bar collisions at root s = 1.8 TeV using a sample
of 16.6 +/- 0.6 pb(-1) collected by the Collider Detector at Fermilab.
The three resonances were reconstructed through the decay Upsilon -->
mu(+)mu(-). Comparison is made to a leading order QCD prediction.