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The economics of Noogoora burr control in Western Australia : a benefit cost analysis / by E.J. Roberts, J.M. Hector and L.J. Crackel.
by Hector, J. M.; Roberts, E. J.; Western Australia Agriculture Protection Board.; Crackel, L. J.;
Year: 1988., Callno: 632.519.98:338(941) ROB [Q]
Book
Report on a pilot study investigating farmers' attitudes to weeds and weed control / by K.D. Williams, G.J. Syme, L.J. Crackel, E.J. Roberts.
by Western Australia Agriculture Protection Board.; Williams, K. D.; Syme, G. J.; Crackel, L. J.; Roberts, E. J.;
Year: 1987., Callno: 632.51 REP [Q]
Book
The economics of blackberry control : a cost benefit analysis / by L.J. Crackel and E.J. Roberts.
by Crackel, L. J.; Western Australia Agriculture Protection Board.; Roberts, E. J.;
Year: 1987., Callno: 632.573.4:338 CRA [Q]
Book
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