United States. Bureau of Plant Industry. (1938). Composition of rhizome, stem, and leaf of some horticultural forms of canna in relation to their possible use. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Industry. Composition of Rhizome, Stem, and Leaf of Some Horticultural Forms of Canna in Relation to Their Possible Use. [Washington]: [s.n.], 1938.
MLA (9th ed.) CitationUnited States. Bureau of Plant Industry. Composition of Rhizome, Stem, and Leaf of Some Horticultural Forms of Canna in Relation to Their Possible Use. [s.n.], 1938.
Warning: These citations may not always be 100% accurate.