George Washington University, Washington, D. C. Biological Sciences Communication Project. (1967). Sorghum: A bibliography of the world literature covering the years, 1930-1963. Scarecrow Press.
Lua i Stíl Chicago (17ú heag.)George Washington University, Washington, D. C. Biological Sciences Communication Project. Sorghum: A Bibliography of the World Literature Covering the Years, 1930-1963. Metuchen, N. J: Scarecrow Press, 1967.
Lua MLA (9ú heag.)George Washington University, Washington, D. C. Biological Sciences Communication Project. Sorghum: A Bibliography of the World Literature Covering the Years, 1930-1963. Scarecrow Press, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.