Catalogues and indexes of British government publications 1920-1970. Chadwyck-Healey.
Chicago Style (17th ed.) CitationCatalogues and Indexes of British Government Publications 1920-1970. Bishops Stortford: Chadwyck-Healey.
MLA (9th ed.) CitationCatalogues and Indexes of British Government Publications 1920-1970. Chadwyck-Healey.
Warning: These citations may not always be 100% accurate.