1. Edward , H. “Chamberlin Papers (EHC)”. Cambridge, Mass., USA: The Pusey Library, Harvard University.
2. Richard , F. “Kahn Papers (RFK)”. Cambridge, England: Modern Archives, King's College, Cambridge University.
3. “John Maynard Keynes Papers (JMK)”. Cambridge, England: Modern Archives, King's College, Cambridge University.
4. “Joan Violet Robinson Papers (JVR)”. Cambridge, England: Modern Archives, King's College, Cambridge University.
5. “John Saltmarsh Papers (JS)”. Cambridge, England: Modern Archives, King's College, Cambridge University.