9970 Payment is required in advance for orders totalling less than 10.00.
Prices are inclusive of postage etc.
Invoices will be issued in respect of orders totalling 10.00 or more. Invoices will normally be issued within 10 days of despatch of the publications. Some NBS publications are supplied free of charge, although an administrative charge may be made for orders of more than 20 copies. Administrative charges are on a sliding scale, beginning at 5.00.