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Experiments with Repellents Against the Corn Root-aphis, 1905 and 1906
Albert Nash Hume
Cyril George Hopkins
Edward Murray East
John Main Trueman
John William Lloyd
Louie Henrie Smith
Rufus Chancey Obrecht
Stephen Alfred Forbes
Walter Castella Coffey
James Harvey Pettit
Leonard Hegnauer
Jerome Edward Readhimer
Orlando Dorr Center
出版
University of Illinois Agricultural Experiment Station
, 1907
URL
http://books.google.com.hk/books?id=QLGqAQAACAAJ&hl=&source=gbs_api