Silage Publications

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 J.M. Wilkinson
F. Wadephul
School of Biology, University of Leeds
Leeds, Leeds, LS2 9JT
United Kingdom

and

J. Hill
Department of Agriculture and Rural Management
Writtle College, Writtle, Chelmsford, CMI 3RR
United Kingdom


Chalcombe Publications
Painshall, Church Lane, Welton
Lincon LN2 3LT
U.K.

September 1996
Reprinted 1998, 1999