R. Williamson
发表
E. D. Threadgill,
R. Williamson,
1974
.
J. Snell,
R. Williamson,
1960
.
C. Clausen,
C. Yestrebsky,
R. Williamson,
2014,
Chemosphere.
F. J. Wolak,
A. Khalilian,
R. Williamson,
2002
.
S. Kays,
R. Williamson,
D. Smittle,
1977,
Journal of the American Society for Horticultural Science.
R. E. Williamson,
G. Farquhar,
R. Richards,
1996
.
T. Rufty,
R. Williamson,
V. Sisson,
1991
.
George J. Kriz,
R. E. Williamson,
R. Williamson,
1970
.
R. Williamson,
1966
.
Robert E. Williamson,
R. Williamson,
1981
.
A. Petschek,
R. Williamson,
P. C. White,
1979
.
A. W. Knapp,
R. Williamson,
1971
.
Ahmad Khalilian,
R. E. Williamson,
John D. Mueller,
2002
.
R. Williamson,
D. Smittle,
1977,
Journal of the American Society for Horticultural Science.
F. J. Wolak,
J. D. Mueller,
A. Khalilian,
2000
.