BOOKQUE

South Dakota Potatoes: Production, Prices, Destinations
Virgil Roe Wertz
· 1928
South Dakota Potatoes: Production, Prices, Destinations
Albert Nash Hume , Alfred L. Bushey , Clarence Alfred Bonnen , E. P. Crossen , E. W. Hardies , James Wilbur Wilson , Thomas M. Olson , Virgil Roe Wertz , Wendell Frichof Kumlien
· 1927
Estimated Income from the Ohio Agricultural Industry
Virgil Roe Wertz
· 1930
Ohio Farm Prices, January 1925-to Date (15th of Each Month)
Virgil Roe Wertz
· 1936
The Farm Mortgage Situation in Putnam, Union, and Greene Counties, Ohio
Virgil Roe Wertz
· 1932
Research Bulletin
Virgil Roe Wertz
· 1932
Apple Thinning: With Special Reference to Grimes Golden and Jonathan
Asa R. Tuttle , C. W. Ellenwood , Cassius Clay Hayden , Cecil Alexander Lamb , Charles Wesley Hauck , George F. Henning , I. P. Lewis , Marion E. Griffith , Paul Edward Tilford , Virgil Roe Wertz
· 1932
Dicalcium Phosphate as a Mineral Supplement for Dairy Cows
Allan Goodrich Newhall , C. W. Ellenwood , Cassius Clay Hayden , Francis Lewis Morison , James Sheldon Shoemaker , Leighton George Foster , Louis Agassiz Stearns , Virgil Roe Wertz , Wayne Lewis Robison
· 1930
Photoperiodism: The Value of Supplementary Illumination and Reduction of Light on Flowering Plants in the Greenhouse
Alex Laurie , C. W. Ellenwood , Cecil Alexander Lamb , Harold Lamont Borst , I. P. Lewis , John H. Sitterley , Paul Edward Tilford , Virgil Roe Wertz
· 1932
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The Agricultural Situation in Ohio: As Affected by a Changing Price Level
Virgil Roe Wertz
· 1933