R. Crabtree
发表
R. W. Crabtree,
R. Crabtree,
1989
.
S. Trudgill,
R. Crabtree,
1981
.
S. Trudgill,
R. Crabtree,
1985
.
M. Kirkby,
R. Crabtree,
1985
.
S. Trudgill,
R. Crabtree,
1984
.
R. W. Crabtree,
Keith Smettem,
S. T. Trudgill,
1983
.
P. Smart,
S. Trudgill,
R. Crabtree,
1987
.
R W Crabtree,
C P Crockett,
J C Ellis,
1989,
Environmental monitoring and assessment.
S. Trudgill,
R. Crabtree,
1987
.
David Ingle Smith,
S. Trudgill,
R. Crabtree,
1982
.
S. Trudgill,
R. Crabtree,
1985
.
R. Ferguson,
S. Trudgill,
R. Crabtree,
1994
.
T. Burt,
R. Crabtree,
1983
.
S. Trudgill,
R. Crabtree,
1984
.
Richard Ashley,
R. W. Crabtree,
R. Ashley,
1992
.
R. W. Crabtree,
C. F. Forster,
I. D. Cluckie,
1986
.
Richard Ashley,
R. W. Crabtree,
R. Gent,
1995
.