David E. Spencer
发表
Kenneth N. Berk,
K. Berk,
David E. Spencer,
1981
.
David E. Spencer,
1993
.
David E. Spencer,
J. Gray,
Jo Anna Gray,
1990
.
David E. Spencer,
Kerk L Phillips,
B. Perry,
2012
.
David E. Spencer,
1985
.
David E. Spencer,
G. S. Laumas,
1980
.
Kerk L. Phillips,
David E. Spencer,
Kerk L Phillips,
2015
.
Kerk L. Phillips,
David E. Spencer,
B. Perry,
2012
.
David E. Spencer,
2018
.
David E. Spencer,
2004
.
David E. Spencer,
J. Gray,
M. Kandil,
1992
.
Rati Ram,
David E. Spencer,
1983
.
I. Karafiath,
David E. Spencer,
1991
.
John F. Chizmar,
David E. Spencer,
1980
.
David E. Spencer,
1998
.
David E. Spencer,
1996
.
David E. Spencer,
Y. P. Mehra,
1979
.