United States. Bureau of Plant Industry. (1938). Removal of lead spray residues from apples grown in Shenandoah--Cumberland Valley. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Industry. Removal of Lead Spray Residues from Apples Grown in Shenandoah--Cumberland Valley. [Washington]: [s.n.], 1938.
MLA (9th ed.) CitationUnited States. Bureau of Plant Industry. Removal of Lead Spray Residues from Apples Grown in Shenandoah--Cumberland Valley. [s.n.], 1938.
Warning: These citations may not always be 100% accurate.