Keynes, Helen Mary.
Nationality: Undetermined, possibly 
(United Kingdom)
Identities and Authority Control
- pdbooks.info ID: 97464
Helen Mary. Keynes Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
 | |  | 
| ||||||
| Murder in Rosemary lane | 1936 | Author | |  |  | | | ||
| Who killed Jefferson Broome? | 1937 | Author | | | | | | ||