TY - RPRT TI - Thermal and economic analysis of three HVAC system types in a typical VA patient facility AU - Walton, George N AU - Petersen, Stephen R PY - 1987 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 87-3619 DO - 10.6028/NBS.IR.87-3619 ER -