Martha Kropf
发表
R. Michael Alvarez,
Bernard Grofman,
Martha Kropf,
2014
.
David C. Kimball,
Martha Kropf,
2008
.
David C. Kimball,
Martha Kropf,
D. Kimball,
2005
.
David C. Kimball,
Martha Kropf,
D. Kimball,
2006
.
Martha Kropf,
Stephen Knack,
2003,
The Journal of Politics.