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united states. bureau of plant quarantine
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View The Plant quarantine and control administration By Weber, Gustavus Adolphus 
The Plant quarantine and control administration
By Weber, Gustavus Adolphus
View Directory of field activities of the Bureau of Plant Quarantine, 1933 By United States. Bureau of Plant Quarantine 
Directory of field activities of the Bureau of Plant Quarantine, 1933
By United States. Bureau of Plant Quarantine
View Directory of field activities of Plant Quarantine and Control Administration By United States. Bureau of Plant Quarantine 
Directory of field activities of Plant Quarantine and Control Administration
By United States. Bureau of Plant Quarantine
View Preliminary inventory of the records of the Bureau of Entomology and Plant Quarantine (Record group 7) By United States. National Archives.
Preliminary inventory of the records of the Bureau of Entomology and Plant Quarantine (Record group 7)
Preliminary inventory of the records of the Bureau of Entomology and Plant Quarantine (Record group 7)
By United States. National Archives.
View News letter By United States. Bureau of Plant Quarantine 
News letter
By United States. Bureau of Plant Quarantine