R E Layfield
发表
G R Watts,
R Stait,
N S Godfrey,
2003
.
R E Layfield,
1974
.
G R Watts,
R Stait,
N S Godfrey,
2002
.
R E Layfield,
P B Ellson,
1972
.
R E Layfield,
P G Abbott,
A J Hickman,
1995
.
R E Layfield,
M D Bardsley,
1977
.
R A Vincent,
R E Layfield,
M D Bardsley,
1976
.
R E Layfield,
A J Hickman,
I S Mccrae,
1998
.
R E Layfield,
D I Parry,
1998
.
R E Layfield,
B R Cooper,
1977
.
R E Layfield,
P G Abbott,
S M Phillips,
1995
.
R E Layfield,
I A Sayer,
D A Nicholls,
1999
.
R E Layfield,
M C Williams,
1987
.
R E Layfield,
D C Webster,
1993
.
G Maycock,
R E Layfield,
1986
.
R E Layfield,
D C Webster,
2007
.
R E Layfield,
1994
.
G R Watts,
R Stait,
N S Godfrey,
2001
.
I Summersgill,
R E Layfield,
I. Summersgill,
1996
.