Silk, L., & Silk, M. (1978). The American establishment: Leonard Silk & Mark Silk. Basic Books.
Lua i Stíl Chicago (17ú heag.)Silk, Leonard, agus Mark Silk. The American Establishment: Leonard Silk & Mark Silk. New York: Basic Books, 1978.
Lua MLA (8ú heag.)Silk, Leonard, agus Mark Silk. The American Establishment: Leonard Silk & Mark Silk. Basic Books, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.