Yazar
Mervin George Smith
7 cilt bulundu.
Mervin George Smith · Office of foreign agricultural relations, U.S. Department of agriculture]
77 sayfa · 1947
Marketing / Vegetables / Farm produce / Commerce
Mervin George Smith · Ohio Agricultural Experiment Station
27 sayfa · 1959
Agriculture / Economic aspects / Economic aspects of Agriculture
Mervin George Smith · Ohio Agricultural Experiment Station
18 sayfa · 1956
Agriculture / Economic aspects / Economic aspects of Agriculture / Farm income
Mervin George Smith · Ohio Agricultural Experiment Station
11 sayfa · 1957
Agriculture / Economic aspects / Economic aspects of Agriculture / Information services
Mervin George Smith · Agricultural Extension Service, Ohio State University
20 sayfa · 1956
Agriculture / Economic aspects / Economic aspects of Agriculture
Mervin George Smith, Lynn Robertson · Purdue University Agricultural Experiment Station
31 sayfa · 1941
Peppermint oil / Economic aspects / Spearmint oil
Francis B. McCormick, Mervin George Smith · Ohio Agricultural Experiment Station
38 sayfa · 1960
Wheat / Prices