United States. Department of Agriculture. Office of the Secretary & Martin, J. F. (1921). Treatment of ornamental white pines infected with blister rust. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary and J. F. Martin. Treatment of Ornamental White Pines Infected with Blister Rust. Washington: U.S. GPO, 1921.
MLA (9th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary and J. F. Martin. Treatment of Ornamental White Pines Infected with Blister Rust. U.S. GPO, 1921.
Warning: These citations may not always be 100% accurate.