TY  - BOOK
AU  - Spedding,C.R.W.
TI  - An introduction to agricultural systems
SN  - 1851661913
AV  - S494.5.S95 S64 1988 
PY  - 1988///
CY  - London, New York
PB  - Elsevier Applied Science, Sole distributor in the USA and Canada, Elsevier Science Pub. Co.
KW  - Agricultural systems
N1  - Includes index
ER  -