Current issue available via Internet from the IRS web site (PDF file only). Address as of 1/24/2001: http://ftp.fedworld.gov/pub/irs-pdf/p1066.pdf ; current access is available via PURL.
Microfiche. <2001>. [Washington, D.C.] : Supt. of Docs., U.S. G.P.O. microfiches.