Changing agriculture : an introduction to systems thinking /
Wilson, Jim.
Changing agriculture : an introduction to systems thinking / drawings by Jenny Coxon. Jim Wilson ; - 2nd ed. - Kenthurst, NSW : Kangaroo Press, 1992. - 80 p. : ill.
1995 reprint.
0864174896
Agriculture--Philosophy.
Agricultural systems.
System analysis.
630 / W749
Changing agriculture : an introduction to systems thinking / drawings by Jenny Coxon. Jim Wilson ; - 2nd ed. - Kenthurst, NSW : Kangaroo Press, 1992. - 80 p. : ill.
1995 reprint.
0864174896
Agriculture--Philosophy.
Agricultural systems.
System analysis.
630 / W749