Plant-quarantine import restrictions of the Union of South Africa.
APA Citation
Hoyt, A. S., United States. Bureau of Entomology and Plant Quarantine. (1944). Plant-quarantine import restrictions of the Union of South Africa. Washington, D.C.: United States Department of Agriculture, Bureau of Entomology and Plant Quarantine.
MLA Citation
Hoyt, Avery S, and United States. Bureau of Entomology and Plant Quarantine. Plant-quarantine Import Restrictions of the Union of South Africa. Washington, D.C.: United States Department of Agriculture, Bureau of Entomology and Plant Quarantine, 1944.
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