An introduction to agricultural systems
Spedding, C. R. W. (Colin Raymond William)1979
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An introduction to agricultural systems / C.R.W. Spedding.
London : Applied Science Publishers, 1979.
ix,169p. : ill. ; 23cm.
Bibliography: p.162-166. _ Includes index.
9780853348238 (pbk)
English
1503154