Description
Published:Print began with: 1989.
Physical Description:1 online resource
Publication Frequency:Annual
Format:Mode of access: Internet from the BLS web site. Previously available as of 7/14/15: http://stats.bls.gov/schedule/archives/all%5Fnr.htm#UNION2 (archived issues) and http://www.bls.gov/news.release/union2.toc.htm (current issue).