United States. Bureau of Plant Industry & Vinall, H. N. (1909). Italian rye-grass (Lolium italicum). [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Industry and H. N. Vinall. Italian Rye-grass (Lolium Italicum). Washington, D.C.: [publisher not identified], 1909.
MLA (9th ed.) CitationUnited States. Bureau of Plant Industry and H. N. Vinall. Italian Rye-grass (Lolium Italicum). [publisher not identified], 1909.
Warning: These citations may not always be 100% accurate.