Anonymous. 1940f. List of intercepted plant pests, 1939 (list of pests recorded during the period 1 July 1939 to 30 June 1940, inclusive, as intercepted in, on, or with plants and plant products entering United States territory). United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, Service and Regulatory Announcements. 53 p.
Anonymous 1940
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