United States. Department of Agriculture. Office of the Secretary & Morrison, B. Y. (1929). Azaleas and rhododendrons from seed. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary and B. Y. Morrison. Azaleas and Rhododendrons from Seed. Washington: [publisher not identified], 1929.
MLA (9th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary and B. Y. Morrison. Azaleas and Rhododendrons from Seed. [publisher not identified], 1929.
Warning: These citations may not always be 100% accurate.