1. Barings Archive, Digitised Collections.
2. The Baring Prospectuses. Available at: http://www.baringarchive.org.uk/features_exhibitions/digital_resources/.
3. British Library, London.
4. India Office Records and Private Papers, IOR/L/PS/11/156:
5. P 5577/1919 China: Agreement Admitting Messrs Rothschild and British Trade Corporation to Membership in British Group, 1919.