R. Stephen Parker
发表
R. Stephen Parker,
John L Kent,
R. Parker,
1998
.
R. Stephen Parker,
Charles E. Pettijohn,
Sherry James Cook,
2004
.
R. Stephen Parker,
Charles E. Pettijohn,
Bruce D. Keillor,
2000
.
R. Stephen Parker,
Charles E. Pettijohn,
R. Parker,
1997
.
R. Stephen Parker,
Charles M. Hermans,
Allen D. Schaefer,
2009
.
R. Stephen Parker,
Diana L. Haytko,
R. Parker,
2012
.
R. Stephen Parker,
Charles E. Pettijohn,
Bruce D. Keillor,
1999
.
R. Stephen Parker,
Charles E. Pettijohn,
Sherry James Cook,
2007
.
R. Stephen Parker,
Charles E. Pettijohn,
L. Pettijohn,
2001
.
Elizabeth J. Rozell,
R. Stephen Parker,
Charles E. Pettijohn,
2002
.
R. Stephen Parker,
John L Kent,
1999
.