  Inclusive hadron production cross sections in e+e-collisions shed light on
the fundamental fragmentation and hadronization processes. We present
measurements of the inclusive spectra of charged pions, kaons and protons in
hadronic events at a center-of-mass energy of 10.54 \gev. These results are
compared with theoretical predictions and the predictions of three
hadronization models. Along with previous measurements at higher energies, they
are also used to study the scaling properties of hadron production.
