Lua APA (7ú heag.)
Scott Publishing Co & Marzulla, E. E. Stamps and Stories: The exciting saga of U.S. history told in stamps (Primera edición.).
Lua i Stíl Chicago (17ú heag.)
Scott Publishing Co agus Elena Editor Marzulla. Stamps and Stories: The Exciting Saga of U.S. History Told in Stamps. Primera edición.
Lua MLA (9ú heag.)
Scott Publishing Co agus Elena Editor Marzulla. Stamps and Stories: The Exciting Saga of U.S. History Told in Stamps. Primera edición.
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