Richard T. Lapan
发表
Norman C. Gysbers,
Richard T. Lapan,
R. Lapan,
2001
.
Richard T. Lapan,
R. Lapan,
2004
.
Richard T. Lapan,
R. Lapan,
J. Kosciulek,
2003
.
Richard T. Lapan,
R. Lapan,
Angela Adams,
2000
.
Gregory F. Petroski,
Norman C. Gysbers,
Richard T. Lapan,
2001
.
Norman C. Gysbers,
Richard T. Lapan,
R. Lapan,
1993
.
Norman C. Gysbers,
Richard T. Lapan,
R. Lapan,
1997
.
Norman C. Gysbers,
Richard T. Lapan,
R. Lapan,
2012
.
Robert E. Reys,
Barbara J. Reys,
Richard T. Lapan,
2003
.
Richard T. Lapan,
R. Lapan,
2012
.
Richard T. Lapan,
R. Lapan,
S. Turner,
2002
.
Ralph E. Reynolds,
Richard T. Lapan,
R. Reynolds,
1994
.
Richard T. Lapan,
R. Lapan,
C. Kardash,
2002
.
Elizabeth McGrath,
Richard T. Lapan,
R. Lapan,
1990
.
Richard T. Lapan,
R. Lapan,
S. Turner,
2004
.
Richard T. Lapan,
R. Lapan,
Angela Adams,
1999
.