Não informado. (1950). British National Bibliography. British Library, Bibliographic Services Division.
Chicago Style (17th ed.) CitationNão informado. British National Bibliography. London: British Library, Bibliographic Services Division, 1950.
MLA (8th ed.) CitationNão informado. British National Bibliography. British Library, Bibliographic Services Division, 1950.
Warning: These citations may not always be 100% accurate.