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Action on acidification [videorecording] / researched, scripted & directed [by] Gerry North.

by Western Australia Dept. of Agriculture Media Services Unit.; National Soil Conservation Program (Australia); North, G.;

Year: 198-], Callno: 631.415.2 ACT

Book

The last straw : a study of land degradation in lupin - cereal rotation [videodisc] / presented by the Kondinin Group. [Variant title:The last straw.]

by National Soil Conservation Program (Australia); Western Australia. Dept. of Agriculture.; Kondinin Group.; North, G.; Carter, D. J.;

Year: c1987., Callno: 631.51:631.544.72(941) LAS

Eletronic Resource

Soil structure decline [videodisc] / presented [and] directed by Gerry North.

by Western Australia Dept. of Agriculture Division of Resource Management.; North, G. (Western Australian Dept. of Agriculture, Perth. Div. of Resource Management); Western Australia Dept. of Agriculture Information Branch.;

Year: c1990., Callno: 631.434(941) NOR

Eletronic Resource

Wind erosion [videodisc] / produced by the Division of Resource Management and the Information Branch, Western Australian Department of Agriculture.

by Carter, D. J. (Agriculture Western Australia, Perth); Western Australia Dept. of Agriculture Media Services Unit.; Western Australia Dept. of Agriculture Division of Resource Management.; North, G.;

Year: [198?], Callno: 631.459.3(941) WIN

Eletronic Resource