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The Western Grass-stem Sawfly
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
其他書名
A Pest of Small Grains
出版
U.S. Department of Agriculture
, 1929
URL
http://books.google.com.hk/books?id=3QM7vgEACAAJ&hl=&source=gbs_api