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- catalog contributor b9112122.
- catalog created "1924.".
- catalog date "1924".
- catalog date "1924.".
- catalog dateCopyrighted "1924.".
- catalog extent "23 p., [4] p. of plates :".
- catalog isPartOf "Bulletin (New York State Agricultural Experiment Station) ; no. 523.".
- catalog isPartOf "Bulletin / New York State Agricultural Experiment Station ; no. 523".
- catalog issued "1924".
- catalog issued "1924.".
- catalog language "eng".
- catalog publisher "Geneva, N.Y. : New York State Agricultural Experiment Station,".
- catalog subject "Pears Diseases and pests Control.".
- catalog subject "Pears Fumigation.".
- catalog subject "Psylla Control.".
- catalog title "Fumigation with hydrogen cyanide for control of pear psylla / R.L. Webster.".
- catalog type "text".