Matthew, H. C. G.; Harrison, B., eds. (23 September 2004), "Marian Hughes", The Oxford Dictionary of National Biography, Oxford: Oxford University Press, doi:10.1093/ref:odnb/39553, retrieved 13 June 2023
Matthew, H. C. G.; Harrison, B., eds. (23 September 2004), "Marian Hughes", The Oxford Dictionary of National Biography, Oxford: Oxford University Press, doi:10.1093/ref:odnb/39553, retrieved 13 June 2023