BIRNBAUM, S. [., & BIRNBAUM, A. M. [. (1990). Birnbaum's Great Britain 1991. Houghton Mifflin Co.
Lua i Stíl Chicago (17ú heag.)BIRNBAUM, Stephen [Ed.], agus Alexandra Mayes [Ed.] BIRNBAUM. Birnbaum's Great Britain 1991. Boston: Houghton Mifflin Co, 1990.
Lua MLA (9ú heag.)BIRNBAUM, Stephen [Ed.], agus Alexandra Mayes [Ed.] BIRNBAUM. Birnbaum's Great Britain 1991. Houghton Mifflin Co, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.