1.
|
Washington, DC : U.S. Dept. of Labor, Bureau of Labor Statistics, [1993]
L 2.71/5-2: 95-21 |
|
2.
|
Washington, DC : U.S. Dept. of Labor, Bureau of Labor Statistics, [1994]
L 2.71/5-2: 95-22 |
|
3.
|
New York, NY : Oxford University Press, 2016.
|
4.
|
Santa Monica, CA : RAND Corporation, 2008.
|
5.
|
Cambridge, MA : Harvard University Press, [2009] ©2005
|
6.
|
Santa Monica, Calif. : Rand, c2003.
|
7.
|
Santa Monica, CA : Rand, 1999.
|
8.
|
[Washington, D.C.?] : U.S. Dept. of Labor, Bureau of Labor Statistics, [1992]
L 2.71/5-2: 92-11 |
|