Charge by release looseleaf services and CD-ROMs:
Updating releases are charged for individually when published. On receipt of your initial order the looseleaf mainwork, we will register you for the updating services. When a new updating release is published, you will automatically receive the release along with the invoice. Please inform us, in writing, if at any time you wish to cancel the updating service. We will cancel the service and will not send you further releases
Approximately 5 updating releases published per annum.