  Quantum corrections to Legendre transformations are shown to cancel to all
orders in supersymmetric theories in path integral formalism. Using this
result, lagrangians for auxiliary fields are generalized to non-quadratic
forms. In supersymmetric effective nonlinear lagrangians, the arbitrariness due
to the existence of quasi Nambu-Goldstone bosons is shown to disappear when
local auxiliary gauge fields are introduced.
