| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| London: Special Memoir for 1:50 000 Geological Sheets 256 (North London), 257 (Romford), 270 (South London) and 271 (Dartford) | 978-O-85272-478-1 (O-85272-478-O) | 2004 |
A. E. · R. A. · R.A.E. · R. E. · R. Ellison · Robert A. Ellison