United States. Soil Conservation Service. (1984). 'Indigo' silky dogwood. U.S. Dept. of Agriculture, Soil Conservation Service.
Chicago Style (17th ed.) CitationUnited States. Soil Conservation Service. 'Indigo' Silky Dogwood. [Beltsville, Md.]: U.S. Dept. of Agriculture, Soil Conservation Service, 1984.
MLA (9th ed.) CitationUnited States. Soil Conservation Service. 'Indigo' Silky Dogwood. U.S. Dept. of Agriculture, Soil Conservation Service, 1984.
Warning: These citations may not always be 100% accurate.