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Tillage

 Subject
Subject Source: Library of Congress Subject Headings

Found in 1 Collection or Record:

Robert G. White papers

 Record Group
Identifier: UA-17.52
Scope and Contents

The Robert G. White papers consists of two reports: Forty Years of Minimum Tillage in the United States by Robert G. White and L. S. Robertson, and Maximum Tillage---Past, Present, and Future by Robert G. White.

Dates: 1969, 1971