United States. Bureau of Plant Industry. (1929). Plant material introduced by Office of Foreign Plant Introduction, Bureau of Plant Industry, Jan. 1 to Mar. 31, 1929. GPO.
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Industry. Plant Material Introduced by Office of Foreign Plant Introduction, Bureau of Plant Industry, Jan. 1 to Mar. 31, 1929. [Washington]: GPO, 1929.
MLA (9th ed.) CitationUnited States. Bureau of Plant Industry. Plant Material Introduced by Office of Foreign Plant Introduction, Bureau of Plant Industry, Jan. 1 to Mar. 31, 1929. GPO, 1929.
Warning: These citations may not always be 100% accurate.