peter g helmberger

Peter G. Helmberger · McGraw-Hill

300 sayfa · 1991

Agricultural subsidies / Agriculture / Agriculture and state / Economic aspects / Economic aspects of Agriculture

Peter G. Helmberger, Jean-Paul Chavas · Prentice Hall

320 sayfa · 1995

Agricultural prices / Agriculture / Economic aspects / Economic aspects of Agriculture / Agriculture, economic aspects

Peter G. Helmberger · University of California, Division of Agricultural Sciences

234 sayfa · 1965

Vegetable trade / Cooperative marketing of farm produce / Fruit trade