1.
Economics Applications to Agriculture and Agribusiness
by Little, Randall D., Roy, Ew...
ISBN: 9780813429496
List Price: $71.60
2.
Econ.:appl.to Agric.+agribus.
by Roy, Ewell P., Corty, Floyd...
ISBN: 9780813421131
List Price: $26.60
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Cooperatives: Development, Principles and Management
by Roy, Ewell P.
ISBN: 9780813421438
List Price: $24.95