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Work of the Seed Testing Laboratory from 1918 to 1923, with Notes on Seed Quality, Seed Testing, Seed Law Compliance, and Trade Practices
Edward E. Clayton
Guy Franklin MacLeod
Mancel Thornton Munn
Reginald Clifton Collison
Fred Carlton Stewart
Fred Elmer Gladwin
Harold Bradford Tukey
Roscoe Wilfred Thatcher
U. P. Hedrick
出版
New York State Agricultural Experiment Station
, 1923
URL
http://books.google.com.hk/books?id=1MFQAQAAMAAJ&hl=&source=gbs_api
