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
Includes bibliographical references and index.
0471934178
92-150624
Agriculture--Research--On-farm.
Agricultural systems--Research.
S540.O53 / P58 1991