[1] ČAPEK, Karel, 1984. Hordubal, Povětroň, Obyčejný život (Praha: Československý spisovatel)
[2] ČAPEK, Karel, 1993. Korespondence (Praha: Český spisovatel)
[3] ČAPEK, Karel, 2000. Přijatá korespondence (Praha: Lidové noviny)
[4] UNWIN, Stanley, 1941. " K. Č."; in Karel Čapek: The Cheat. A novel (London: Allen and Unwin), s. 171–172
[5] UNWIN, Stanley, 1946. On Translations with Some Notes on "Our Universal Language" (London: Allen and Unwin)
[6] UNWIN, Stanley, 1960. The Truth about a Publisher (London: Allen and Unwin)
[7] OXFORD UNIVERSITY PRESS ARCHIVE, CAPEK
[8] UNIVERSITY OF READING, SPECIAL COLLECTIONS, ARCHIVE OF BRITISH PUBLISHING AND PRINTING, RECORDS OF GEORGE ALLEN &UNWIN LTD.:
[9] AUC 754/1, Letters between George Allen &Unwin Ltd and correspondents whose names begin DO–DQ – P. C. Dobell, 1957.
[10] AUC 102/4, Letters to and from R. Weatherall, 1940.
[11] AUC 112/3, Letters to and from Julius Fürth, 1941.
[12] AUC 1188/10, Allen & Unwin 1967 letters file WE–WER – M. Weatherallová.
[13] AUC 127/11, Allen & Unwin 1941 letters file WE–WER – M. Weatherallová.
[14] AUC 137/10, Letters to and from Julius Fürth, 1942.
[15] AUC 164/16, Letters to and from Julius Fürth, 1943.
[16] AUC 166/14, Letters to and from A.M. Heath & Co., 1943.
[17] AUC 181/8, Allen & Unwin 1943 letters file WE–WER – M. a R. Weatherallovi.
[18] AUC 208/13, Allen &Unwin 1944 letters file WE–WG – M. Weatherallová.
[19] AUC 238/7, Allen &Unwin 1945 letters file SC–SD – K. Scheinpflug.
[20] AUC 243/6, Allen &Unwin 1945 letters file WE–WER – M. a R. Weatherallovi.
[21] AUC 277/10, Letters to and from Karel Scheinpflug, 1946.
[22] AUC 30/3, Letters to and from Authors’ Syndicate Ltd., 1932.
[23] AUC 321/5, Letters to and from Karel Scheinpflug, 1947.
[24] AUC 328/2, Letters to and from M. Weatherall, 1947.
[25] AUC 34/5, Letters to and from R. Weatherall, 1932.
[26] AUC 347/14, Allen & Unwin 1948 letters file FI-FN – V. Fischl.
[27] AUC 36/11, Letters to and from Henry Holt & Co., 1933.
[28] AUC 372/10, Letters to and from Dora Round, 1948.
[29] AUC 373/9, Letters to and from Karel Scheinpflug, 1948.
[30] AUC 424/1, Allen &Unwin 1949 letters file SC-SCH – K. Scheinpflug.
[31] AUC 43/22, Letters to and from Dora Round, 1932.
[32] AUC 430/12, Allen & Unwin 1949 letters file WE-WER – M. Weatherallová.
[33] AUC 432/12, Letters to and from A. A. WynnInc., 1949.
[34] AUC 433/4, Allen &Unwin 1950 letters file AD-AH – The Controller General Administration of Enemy Property Dept.
[35] AUC 449/18, Allen &Unwin 1950 letters file FI-FK – J. Firt.
[36] ČAPEK, Thomas – ČAPEK VOSTROVSKÝ, Anna, 1918. A Bohemian (Čech) Bibliography. A Finding List of Writings in English Relating to Bohemia and the Čechs (New York – London: Fleming H. Revell)
[38] FEATHER, John, 2006. A History of British Publishing (London: Routledge)
[39] HOLMAN, Valerie, 2008. Print for victory. Book publishing in Britain 1939–1945 (London: British Library)
[40] MĚDÍLEK, Boris, 1990. Bibliografie Karla Čapka. Soupis jeho díla (Praha: Academia)
[41] SIR STANLEY UNVIN LI. D., 1954. Sir Stanley Unwin Li. D. Tributes from Some of His Friends (London: Allen and Unwin)
[42] STEVENSON, Iain, 2010. Book Makers. British Publishing in the Twentieth Century (London: British Library Board)
[43] VOČADLO, Otakar, 1975. Anglické listy Karla Čapka (Praha: Academia)
[44] VOČADLO, Otakar, 1933. " Anglický překladatel z češtiny"; Přítomnost 10, č. 24, s. 384.