Allin, D. H., & Kraus, S. (1994). Teenty Years Aspen Institute Berlin: [publ. by the Aspen Institute Berlin. Prepared by Susanne Kraus. Ed. by Dana H. Allin].
Lua i Stíl Chicago (17ú heag.)Allin, Dana H., agus Susanne Kraus. Teenty Years Aspen Institute Berlin: [publ. by the Aspen Institute Berlin. Prepared by Susanne Kraus. Ed. by Dana H. Allin]. Berlin, 1994.
Lua MLA (8ú heag.)Allin, Dana H., agus Susanne Kraus. Teenty Years Aspen Institute Berlin: [publ. by the Aspen Institute Berlin. Prepared by Susanne Kraus. Ed. by Dana H. Allin]. 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.