| title | ISBN-13 | year of publication |
|---|---|---|
| 15th Annual Report and Statement of Accounts: 1 April 1987 to 31 March 1988 | 978-0-337-09334-0 | 1990 |
| 16th Annual Report: 1 April 1988 to 31 March 1989 | 978-0-337-09348-7 | 1990 |
| 16th Statement of Accounts: 1 April 1988 to 31 March 1989 | 978-0-337-09353-1 | 1990 |
| 17th Annual Report: 1 April 1989 to 31 March 1990 | 978-0-337-09358-6 | 1991 |