| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| British Bibliography of Edgar Wallace | 978-0-09-304760-1 (0-09-304760-6) | 1969 | W.O.G. Lofts |
| Men Behind Boy's Fiction | 978-0-09-304770-0 (0-09-304770-3) | 1970 | D.S. Adley |
| Saint and Leslie Charteris | 978-0-09-304800-4 (0-09-304800-9) | 1971 | William Oliver Guillemont Lofts |