R. Powell
发表
Jack D. Glazier,
R. Powell,
1992
.
Joseph J. Mika,
R. Powell,
L. Baker,
2002
.
Ronald R. Powell,
R. Powell,
1999
.
Ronald R. Powell,
Douglas Raber,
R. Powell,
1994
.
P. Hernon,
R. Powell,
2008
.
Ronald R. Powell,
Lynn Silipigni Connaway,
L. Connaway,
1997
.
P. Hernon,
R. Powell,
A. Young,
2006
.
P. Hernon,
R. Powell,
A. Young,
2022
.
Ronald R. Powell,
R. Powell,
1985
.
Ronald R. Powell,
R. Powell,
1991
.
Ronald R. Powell,
Peter Hernon,
Arthur P. Young,
2003
.
Ronald R. Powell,
Peter Hernon,
Arthur P. Young,
2001
.
Ronald R. Powell,
Peter Hernon,
Arthur P. Young,
2004
.
Ronald R. Powell,
Robert P. Holley,
R. Powell,
2004
.
Ronald Powell,
R. Powell,
2006,
Libr. Trends.