Rules and regulations governing the movement of plants and plant products into and out of the District of Columbia, effective on and after September 1, 1920
United States. Federal Horticultural Board.
Book
Published material
Washington, D.C, 1920
Mimeographed.
Plant diseases , Plants, Protection of
English
DOI: https://doi.org/10.5962/bhl.title.56594 NAL: 1 F35D 1920 OCLC: 63327181
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