P. A. Stevens
发表
Terry Marsden,
Bridget A. Emmett,
Hywel Rhys Thomas,
2002
.
Technology transfer and on-farm evaluation of animal-powered equipment: approach and experience IMAG
A. A. Wanders,
P. A. Stevens,
1999
.
P. A. Stevens,
1981
.
P. A. Stevens,
W. B. Hoogmoed,
D. Samazaka,
2004
.
P. A. Stevens,
W. B. Hoogmoed,
S. W. Muliokela,
2003
.
B. A. Dodd,
Catherine L. Barnett,
P. A. Stevens,
1999
.
Brian Reynolds,
P. A. Stevens,
M. Hornung,
1986,
Journal of the Geological Society.
Fergus L. Sinclair,
I. Verinumbe,
P. A. Stevens,
1997
.
P. A. Stevens,
Kevin J. Walker,
D. P. Stevens,
2004
.
Timothy J. Fahey,
P. A. Stevens,
T. Fahey,
1991
.
Brian Reynolds,
P. A. Stevens,
Colin Neal,
1990
.