  We use a mapping of the quasi-2D electron liquid to a classical fluid and use
the hypernetted-chain equation inclusive of bridge corrections, i.e., CHNC, to
calculate the electron pair-distribution functions and exchange-correlation
energies as a function of the density, layer width, spin-polarization and
temperature. The theory is free of adjustable parameters and is in good accord
with recent effective-mass and spin-susceptibility results for HIGFET 2-D
layers.
