Posner, R., & Robering, K. Syntactics: Roland Posner. Klaus Robering. [Semiotik, 1].(1997).
Lua i Stíl Chicago (17ú heag.)Posner, Roland, agus Klaus Robering. "Syntactics: Roland Posner. Klaus Robering." [Semiotik, 1].(1997) .
Lua MLA (8ú heag.)Posner, Roland, agus Klaus Robering. "Syntactics: Roland Posner. Klaus Robering." [Semiotik, 1].(1997), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.