APA (7th ed.) Citation

British Library. (2001). The British Library catalogue of additions to the manuscripts: The G. K. Chesterton Papers, additional manuscripts 73186-73484. The British Library.

Chicago Style (17th ed.) Citation

British Library. The British Library Catalogue of Additions to the Manuscripts: The G. K. Chesterton Papers, Additional Manuscripts 73186-73484. London: The British Library, 2001.

MLA (9th ed.) Citation

British Library. The British Library Catalogue of Additions to the Manuscripts: The G. K. Chesterton Papers, Additional Manuscripts 73186-73484. The British Library, 2001.

Warning: These citations may not always be 100% accurate.