Files can be downloaded and viewed for free but are protected from modification and copying. For a payment of UK£100 (US$124 / EU€112) you will be emailed unrestricted and up-to-date file(s). Other terms may be available for charitable or academic organisations.
Select a file and then click the ‘Add File to Cart’ button.
Repeat for each file you require.
Ensure to include your correct email address on the Paypal order form.