Columbia subject headings:
Detective and mystery stories, American--History and criticism.
Detective and mystery stories, English--History and criticism.
Fiction--Technique.
Popular literature--History and criticism.
Harvard subject headings:
Detective and mystery stories, American--History and criticism.
Detective and mystery stories, English--History and criticism.
Fiction--Technique
Popular literature--English-speaking countries--History and criticism.
Popular literature--History and criticism.
Princeton subject headings:
Detective and mystery stories--History and criticism.