Shull, G. H. (1905). Stages in the development of Sium cicutaefolium. Carnegie Institution of Washington.
Chicago Style (17th ed.) CitationShull, George Harrison. Stages in the Development of Sium Cicutaefolium. Washington, DC: Carnegie Institution of Washington, 1905.
MLA (9th ed.) CitationShull, George Harrison. Stages in the Development of Sium Cicutaefolium. Carnegie Institution of Washington, 1905.
Warning: These citations may not always be 100% accurate.