Langridge, L. (1980). Britain and Europe during 1979: A bibliographical guide : an author, title and chronological index to British primary source material on European integration. Harvester Microform.
Lua i Stíl Chicago (17ú heag.)Langridge, Lorraine. Britain and Europe During 1979: A Bibliographical Guide : An Author, Title and Chronological Index to British Primary Source Material on European Integration. Brighton, Eng.: Harvester Microform, 1980.
Lua MLA (8ú heag.)Langridge, Lorraine. Britain and Europe During 1979: A Bibliographical Guide : An Author, Title and Chronological Index to British Primary Source Material on European Integration. Harvester Microform, 1980.
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