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Ruric Creegan Roark

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Books

Glossary of Botanical Terms Commonly Used in Range Research
Glossary of Botanical Terms Commonly Used in Range Research
Glen Blaine Ramsey, Hazel Katherine Stiebeling, Stanley Paul Young, George Konrad Karl Link, Harry Lawrence Wilson, Robert William Ayres, Charles Sterling Trimble, Miriam Birdseye, Ruric Creegan Roark, Annie Murray Hannay, Guy Ervin, Paul Goodwin Redington, Wilbur August Gersdorff, W. I. Hutchinson
A Method for Determining the Color of Agricultural Products
A Method for Determining the Color of Agricultural Products
William White, Lewis Bertie Olmstead, Ralph Wylie Frey, Louis Guy Michael, Raphael Zon, Homer Scott Swingle, Oliver I. Snapp, Clarence Elbert Clement, George G. Ainslie, Howard E. Middleton, Lyle Thomas Alexander, Lorraine Joseph Markwardt, R. T. Cotton, Benson H. Paul, James Johnson, Harry Lawrence Wilson, Calvin Grant Church, Edward Mackay Chace, Charles Sterling Trimble, C. A. Plaskett, William Gustavus Wahlenberg, Ruric Creegan Roark, Charles Nicholas Ainslie, Dorothy Nickerson, Emilio Pepe Meinecke, Franklin Thomas Cowan, James Stanley Mathewson, John A. Newlin, Joseph Hubert Priestley, Laurence Victor Teesdale, Samuel Trask Dana, Whitney Coombs, Charles F. Swingle, Ira Doup Clarke, John Martin Gahagan, R. D. Garver
A Digest of Information on Toxaphene
A Digest of Information on Toxaphene
Ruric Creegan Roark
An Index of Patented Mothproofing Materials
An Index of Patented Mothproofing Materials
Ruric Creegan Roark
The Adulteration of Insect Powder with Powdered Daisy Flowers (Chrysanthemum Leucanthemum L.)
The Adulteration of Insect Powder with Powdered Daisy Flowers (Chrysanthemum Leucanthemum L.)
Ruric Creegan Roark, George Lawrence Keenan

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