George A. Richards
发表
Randall Gemmen,
Mark C. Williams,
George A. Richards,
2011
.
George A. Richards,
Michael C. Janus,
Edward H. Robey,
1997
.
George A. Richards,
Kent H. Casleton,
T. S. Norton,
1993
.
Douglas L. Straub,
George A. Richards,
Edward H. Robey,
2001
.
George A. Richards,
M. Williams,
K. Casleton,
2012
.
Randall Gemmen,
Mark C. Williams,
George A. Richards,
2014
.
William R. Saunders,
Douglas L. Straub,
William T. Baumann,
2001
.