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by Leys, J. F.; Semple, W. S.; Soil Conservation Service of New South Wales.;
Year: 1987., Callno: 631.459.3(944) SEM [Q]
Book
by Soil Conservation Service of New South Wales.; Heinjus, David R.; Leys, J. F.; National Soil Conservation Program (Australia);
Year: 1991., Callno: 631.459.3(942) LEY [Q]
Book
by Butler, P. R.; New South Wales. Dept. of Land and Water Conservation.; Leys, J. F.; National Landcare Program (Australia); Packer, Stephen. more...
Year: 1997., Callno: 631.459.3(942) LEY [Q]
Book