MHRA style book :
notes for authors, editors, and writers of theses.

APA Citation

Modern Humanities Research Association. (1991). MHRA style book: notes for authors, editors, and writers of theses. 4th ed. London: Modern Humanities Research Association.

MLA Citation

Modern Humanities Research Association. MHRA Style Book: Notes for Authors, Editors, And Writers of Theses. 4th ed. London: Modern Humanities Research Association, 1991.

Warning: These citations may not always be complete (especially for serials).