Damm, H. v. (1989). At Reagan's side: Helene von Damm. Doubleday.
Lua i Stíl Chicago (17ú heag.)Damm, Helene von. At Reagan's Side: Helene Von Damm. New York [u.a.]: Doubleday, 1989.
Lua MLA (8ú heag.)Damm, Helene von. At Reagan's Side: Helene Von Damm. Doubleday, 1989.
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