D. Hecker
发表
D. Hecker,
2001
.
D. Hecker,
1999
.
D. Hecker,
1992
.
D. Hecker,
2001
.
D. Hecker,
1998
.
D. Hecker,
1995
.
D. Hecker,
1986
.
D. Hecker,
Daniel E. Hecker,
2005
.
D. Hecker,
Ian D. Wyatt,
2006
.
D. Hecker,
1996,
Occupational outlook quarterly.
D. Hecker,
1992,
Occupational outlook quarterly.
D. Hecker,
1995,
Monthly labor review.