The Western Grass-stem Sawfly

Auteur : Benson H. Paul, C. A. Plaskett, Charles Nicolas Ainslie, Dorothy Nickerson, Edward Mackay Chace, Emilio Pepe Michael Meinecke, Franklin Thomas Cowan, George G. Ainslie, James Johnson (agriculturist.), James Stanley Mathewson, John A. Newlin, Joseph Hubert Priestley, Laurence Victor Teesdale, Lewis Bertie Olmstead, Lorraine Joseph Markwardt, Louis Guy Michael, Oliver I. Snapp, Ralph Wylie Frey, Raphael Zon, Ruric Creegan Roark, Samuel Trask Dana, Whitney Coombs, William Gustavus Wahlenberg, William White, C. S. Trimble, Calvin Grant Church, Charles F. Swingle, H. S. Swingle, Ira Doup Clarke, John Martin Gahagan, Lyle Thomas Alexander, R. D. Garver, R. T. Cotton, Harry Lawrence Wilson, Howard E. Middleton

Date de publication : 1929

Éditeur : U.S. Department of Agriculture

Nombre de pages : 40