R. Spencer
发表
R. Spencer,
2008
.
R. Spencer,
Robin W. Spencer,
2013
.
R. Spencer,
Robin W. Spencer,
2012
.
R. Spencer,
2012
.
R. Spencer,
2013
.
R. Spencer,
Roberta Garner,
1972
.
T. Woods,
R. Spencer,
Timothy J. Woods,
2010
.