TY - BOOK ED - United States. TI - Tax administration: timeliness and accuracy of IRS' telephone assistance on tax questions PY - 1980///?] CY - [Washington, D.C. KW - United States KW - Internal Revenue Service KW - Taxpayer Assistance Program KW - Evaluation KW - Tax administration and procedure N1 - MF; June 1986; CRDP Program Historic Shelflist record ER -