It is proved that the Bergman type operator T-s is a bounded projection fro
m the pluriharmonic Bergman space L-p(B) boolean AND h(B) onto Bergman spac
e L-p(B) boolean AND H(B) for 0 < p < 1 and s > (p(-1) - 1)(n + 1). As an a
pplication it is shown that the Gleason's problem can be solved in Bergman
space L-p(B) boolean AND H(B) for 0 < p < 1.