British Library of Political and Economic Science, London. (1961). Classified catalogue of a collection of works on publishing and bookselling in the British Library of Political and Economic Science.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)British Library of Political and Economic Science, London. Classified Catalogue of a Collection of Works on Publishing and Bookselling in the British Library of Political and Economic Science. London, 1961.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)British Library of Political and Economic Science, London. Classified Catalogue of a Collection of Works on Publishing and Bookselling in the British Library of Political and Economic Science. 1961.
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