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Collections Rural Development Publications Collection Remove constraint Rural Development Publications Collection: Rural Development Publications Collection Subjects USDA Remove constraint USDA: USDA Authors Hess, Charles E. Remove constraint Hess, Charles E.: Hess, Charles E.

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1. Part II. Water: Introduction

Author:: Hess, Charles E.
Subject:: water resources , water management , water policy , water pollution , water quality , USDA , United States
Physical description:: p. 64-66.
Collection:: Rural Development Publications Collection
Series:: Yearbook of agriculture
Part Of:: Yearbook of agriculture. 1991

2. Part IV. Technology: Introduction

Author:: Hess, Charles E.
Subject:: agriculture , agricultural research , agricultural machinery and equipment , technology , electronic equipment , USDA , United States
Physical description:: p. 137-139.
Collection:: Rural Development Publications Collection
Series:: Yearbook of agriculture
Part Of:: Yearbook of agriculture. 1991