David Pownell
发表
Marsha Gladhart,
Neal Topp,
Lynn Elder,
2003
.
David Pownell,
Gerald D. Bailey,
Gerald Bailey,
2001
.
David Pownell,
Gerald D. Bailey,
1999
.
David Pownell,
2004
.
David Pownell,
2004
.
David Pownell,
2005
.
David Pownell,
2014
.
David Pownell,
Gerald D. Bailey,
1998
.
David Pownell,
2006
.
David Pownell,
Gerald D. Bailey,
1999
.