Columbia subject headings:
Allingham, Margery, 1904-1966.
Campion, Albert (Fictitious character)
Detective and mystery stories--Authorship.
Novelists, English--20th century--Biography.
Private investigators in literature.
Harvard subject headings:
Allingham, Margery, 1904-1966--Biography.
Campion, Albert (Fictitious character)
Detective and mystery stories--Authorship
Novelists, English--20th century--Biography
Princeton subject headings:
Allingham, Margery, 1904-1966--Biography.
Authors, English--20th century--Biography.