Ehninger, D., & Brockriede, W. j. a. (1968). Decision by debate. Dodd, Mead.
Lua i Stíl Chicago (17ú heag.)Ehninger, Douglas, agus Wayne joint auth Brockriede. Decision by Debate. New York: Dodd, Mead, 1968.
Lua MLA (9ú heag.)Ehninger, Douglas, agus Wayne joint auth Brockriede. Decision by Debate. Dodd, Mead, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.