TY - RPRT TI - Analysis of housing data collected in a lead-based paint survey in Pittsburgh, Pennsylvania : Part I AU - Shier, Douglas R AU - Hall, William G PY - 1977 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 77-1250 DO - 10.6028/NBS.IR.77-1250 ER -