United States. Bureau of Plant Quarantine. (1932). Quarantines and Treasury decisions governing importation of plants and plant products at Canadian border portraits. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Quarantine. Quarantines and Treasury Decisions Governing Importation of Plants and Plant Products at Canadian Border Portraits. Washington: [publisher not identified], 1932.
MLA (9th ed.) CitationUnited States. Bureau of Plant Quarantine. Quarantines and Treasury Decisions Governing Importation of Plants and Plant Products at Canadian Border Portraits. [publisher not identified], 1932.
Warning: These citations may not always be 100% accurate.