Planned change in farming systems :

Planned change in farming systems : progress in on-farm research / edited by Robert Tripp. - Chichester ; New York : Exeter, UK : J. Wiley ; Co-publication with Sayce Pub., c1991. - x, 348 p. : ill., maps ; 25 cm.

Includes bibliographical references and index.

0471934178

92-150624


Agriculture--Research--On-farm.
Agricultural systems--Research.

S540.O53 / P58 1991

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