R. D. Barker
发表
Martin G. Culshaw,
S. L. Matthews,
A. P. Butcher,
2002
.
R. D. Barker,
1981
.
R. D. Barker,
R. Barker,
1997,
Geological Society, London, Engineering Geology Special Publications.
R. D. Barker,
D. B. Morris,
1990,
Quarterly Journal of Engineering Geology.
R. D. Barker,
R. Barker,
1979
.
R. D. Barker,
S. B. Taylor,
1997
.
R. D. Barker,
R. Barker,
C. C. White,
1997
.
R. D. Barker,
Mark O. Cuthbert,
John H. Tellam,
2009
.