其他書名 | A Report Analyzing the Hours Worked as Reported by Contractors to Joint Funds 1975 Through 1978 (new Data), and Analysis of Seasonality Including Hours Reported for 1973 and 1974 |
出版 | Chicago Construction Committee, U.S. Department of Labor, 1980 |
URL | http://books.google.com.hk/books?id=LX0XAAAAMAAJ&hl=&source=gbs_api |