Second Supplementary Harrod Papers. Vols. xxi-xxvii. Correspondence and papers concerning other publications, principally with Macmillan and Co.; 1927-1978, n.d.
Second Supplementary Harrod Papers. Vols. lxxxvi a-lxxxviii. Economic papers of R. F. Harrod and other authors; 1945-1978, n.d. Partly printed and typewritten.